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EUVD-2026-322359
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 07:44
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T07:44:29.911941+00:00",
"id": "EUVD-2026-322359"
}
CVE-2015-2808 (GCVE-0-2015-2808)
Vulnerability from cvelistv5 – Published: 2015-04-01 00:00 – Updated: 2026-05-28 12:53
VLAI
EPSS
VEX
Summary
The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 23:55 UTC
CWE
- n/a
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
101 references
Date Public
2015-03-26 00:00
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2015-2808",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-27T23:55:11.123525Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-327",
"description": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-28T12:53:51.914Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2015-03-26T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the \"Bar Mitzvah\" issue."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-09-07T16:46:59.848Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "SSRT102127",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=143818140118771\u0026w=2"
},
{
"name": "RHSA-2015:1243",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1243.html"
},
{
"name": "RHSA-2015:1007",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1007.html"
},
{
"name": "HPSBGN03367",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=143817899717054\u0026w=2"
},
{
"name": "HPSBUX03512",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144493176821532\u0026w=2"
},
{
"url": "http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html"
},
{
"name": "RHSA-2015:1006",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1006.html"
},
{
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04773256"
},
{
"url": "https://kb.juniper.net/JSA10783"
},
{
"name": "1033737",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1033737"
},
{
"name": "SUSE-SU-2015:2192",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00004.html"
},
{
"name": "HPSBGN03399",
"tags": [
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],
"url": "http://marc.info/?l=bugtraq\u0026m=144060576831314\u0026w=2"
},
{
"url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"
},
{
"name": "1036222",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1036222"
},
{
"url": "http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04779034"
},
{
"name": "SSRT102129",
"tags": [
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],
"url": "http://marc.info/?l=bugtraq\u0026m=143817899717054\u0026w=2"
},
{
"url": "http://www-304.ibm.com/support/docview.wss?uid=swg21960769"
},
{
"name": "GLSA-201512-10",
"tags": [
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],
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},
{
"name": "RHSA-2015:1229",
"tags": [
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],
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},
{
"url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04708650"
},
{
"name": "1032600",
"tags": [
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"url": "http://www.securitytracker.com/id/1032600"
},
{
"name": "1032910",
"tags": [
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"url": "http://www.securitytracker.com/id/1032910"
},
{
"name": "USN-2706-1",
"tags": [
"vendor-advisory"
],
"url": "http://www.ubuntu.com/usn/USN-2706-1"
},
{
"name": "RHSA-2015:1526",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1526.html"
},
{
"name": "SSRT102133",
"tags": [
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],
"url": "http://marc.info/?l=bugtraq\u0026m=143817021313142\u0026w=2"
},
{
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html"
},
{
"name": "1032599",
"tags": [
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],
"url": "http://www.securitytracker.com/id/1032599"
},
{
"name": "HPSBMU03401",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144104533800819\u0026w=2"
},
{
"url": "http://www-304.ibm.com/support/docview.wss?uid=swg21903565"
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{
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},
{
"url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04711380"
},
{
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10163"
},
{
"name": "HPSBMU03345",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144043644216842\u0026w=2"
},
{
"name": "1032734",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1032734"
},
{
"name": "IV71892",
"tags": [
"vendor-advisory"
],
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg1IV71892"
},
{
"url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05193347"
},
{
"name": "1033769",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1033769"
},
{
"name": "1032707",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1032707"
},
{
"name": "openSUSE-SU-2015:1289",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00040.html"
},
{
"name": "HPSBGN03372",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=143817021313142\u0026w=2"
},
{
"name": "RHSA-2015:1091",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1091.html"
},
{
"name": "HPSBGN03402",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144069189622016\u0026w=2"
},
{
"name": "IV71888",
"tags": [
"vendor-advisory"
],
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg1IV71888"
},
{
"name": "RHSA-2015:1228",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1228.html"
},
{
"name": "HPSBGN03405",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144060606031437\u0026w=2"
},
{
"name": "1032708",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1032708"
},
{
"url": "http://www.huawei.com/en/psirt/security-advisories/hw-454055"
},
{
"name": "DSA-3316",
"tags": [
"vendor-advisory"
],
"url": "http://www.debian.org/security/2015/dsa-3316"
},
{
"name": "SUSE-SU-2015:2166",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00000.html"
},
{
"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html"
},
{
"name": "1033415",
"tags": [
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],
"url": "http://www.securitytracker.com/id/1033415"
},
{
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04832246"
},
{
"name": "HPSBGN03366",
"tags": [
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],
"url": "http://marc.info/?l=bugtraq\u0026m=143818140118771\u0026w=2"
},
{
"url": "https://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5098709"
},
{
"name": "HPSBGN03403",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144104565600964\u0026w=2"
},
{
"name": "SSRT102254",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144493176821532\u0026w=2"
},
{
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21883640"
},
{
"name": "HPSBGN03407",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144102017024820\u0026w=2"
},
{
"name": "1033432",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1033432"
},
{
"name": "HPSBGN03354",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=143629696317098\u0026w=2"
},
{
"name": "SUSE-SU-2015:1138",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00022.html"
},
{
"name": "1032858",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1032858"
},
{
"name": "SSRT102073",
"tags": [
"vendor-advisory"
],
"url": "https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04687922"
},
{
"name": "1032788",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1032788"
},
{
"name": "USN-2696-1",
"tags": [
"vendor-advisory"
],
"url": "http://www.ubuntu.com/usn/USN-2696-1"
},
{
"url": "https://www.blackhat.com/docs/asia-15/materials/asia-15-Mantin-Bar-Mitzvah-Attack-Breaking-SSL-With-13-Year-Old-RC4-Weakness-wp.pdf"
},
{
"name": "DSA-3339",
"tags": [
"vendor-advisory"
],
"url": "http://www.debian.org/security/2015/dsa-3339"
},
{
"name": "RHSA-2015:1020",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1020.html"
},
{
"name": "RHSA-2015:1242",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1242.html"
},
{
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10727"
},
{
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04773241"
},
{
"name": "SUSE-SU-2015:1086",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00015.html"
},
{
"name": "1033431",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1033431"
},
{
"url": "http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-454055.htm"
},
{
"url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05085988"
},
{
"name": "1032868",
"tags": [
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],
"url": "http://www.securitytracker.com/id/1032868"
},
{
"name": "HPSBGN03415",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=144059703728085\u0026w=2"
},
{
"url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html"
},
{
"name": "91787",
"tags": [
"vdb-entry"
],
"url": "http://www.securityfocus.com/bid/91787"
},
{
"name": "SUSE-SU-2015:1319",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00046.html"
},
{
"name": "SUSE-SU-2015:1320",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00047.html"
},
{
"name": "openSUSE-SU-2015:1288",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00039.html"
},
{
"name": "RHSA-2015:1241",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1241.html"
},
{
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04770140"
},
{
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
},
{
"name": "RHSA-2015:1230",
"tags": [
"vendor-advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1230.html"
},
{
"url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05336888"
},
{
"name": "HPSBGN03338",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=143456209711959\u0026w=2"
},
{
"name": "1033386",
"tags": [
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],
"url": "http://www.securitytracker.com/id/1033386"
},
{
"name": "HPSBMU03377",
"tags": [
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],
"url": "http://marc.info/?l=bugtraq\u0026m=143741441012338\u0026w=2"
},
{
"name": "1033072",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1033072"
},
{
"name": "SSRT102150",
"tags": [
"vendor-advisory"
],
"url": "http://marc.info/?l=bugtraq\u0026m=143741441012338\u0026w=2"
},
{
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04926789"
},
{
"name": "SUSE-SU-2015:1085",
"tags": [
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],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00014.html"
},
{
"url": "https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04773119"
},
{
"name": "RHSA-2015:1021",
"tags": [
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],
"url": "http://rhn.redhat.com/errata/RHSA-2015-1021.html"
},
{
"url": "http://www-304.ibm.com/support/docview.wss?uid=swg21960015"
},
{
"name": "SUSE-SU-2015:1073",
"tags": [
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],
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00013.html"
},
{
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},
{
"name": "SUSE-SU-2015:1161",
"tags": [
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"url": "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00031.html"
},
{
"name": "HPSBGN03414",
"tags": [
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],
"url": "http://marc.info/?l=bugtraq\u0026m=144059660127919\u0026w=2"
},
{
"name": "73684",
"tags": [
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],
"url": "http://www.securityfocus.com/bid/73684"
},
{
"name": "1032990",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1032990"
},
{
"name": "1033071",
"tags": [
"vdb-entry"
],
"url": "http://www.securitytracker.com/id/1033071"
},
{
"name": "SUSE-SU-2016:0113",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00005.html"
},
{
"url": "https://www.secpod.com/blog/cve-2015-2808-bar-mitzvah-attack-in-rc4-2/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2015-2808",
"datePublished": "2015-04-01T00:00:00.000Z",
"dateReserved": "2015-03-31T00:00:00.000Z",
"dateUpdated": "2026-05-28T12:53:51.914Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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