CVE-2020-2555 (GCVE-0-2020-2555)
Vulnerability from cvelistv5 – Published: 2020-01-15 16:34 – Updated: 2025-10-21 23:35Summary
Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Caching,CacheStore,Invocation). Supported versions that are affected are 3.7.1.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-30 17:02 UTC
CWE
- Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence.
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://www.oracle.com/security-alerts/cpujul2020.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujan2020.html | x_refsource_MISC |
| http://packetstormsecurity.com/files/157054/Oracl… | x_refsource_MISC |
| http://packetstormsecurity.com/files/157207/Oracl… | x_refsource_MISC |
| http://packetstormsecurity.com/files/157795/WebLo… | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuoct2020.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujan2021.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujul2021.html | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Oracle Corporation | WebCenter Portal |
Affected:
12.2.1.3.0
Affected: 12.2.1.4.0 |
|
| Oracle Corporation | Utilities Framework |
Affected:
4.2.0.2.0
Affected: 4.2.0.3.0 Affected: 4.3.0.1.0-4.3.0.6.0 Affected: 4.4.0.0.0 Affected: 4.4.0.2.0 |
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 26870da8-5d6b-4213-b844-6fca3ecc6d6a
Exploited: Yes
Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: Oracle Multiple Products Remote Code Execution Vulnerability | Affected: Oracle / Multiple Products | Description: Multiple Oracle products contain a remote code execution vulnerability that allows an unauthenticated attacker with network access via T3 or HTTP to takeover the affected system. Impacted Oracle products: Oracle Coherence in Fusion Middleware, Oracle Utilities Framework, Oracle Retail Assortment Planning, Oracle Commerce, Oracle Communications Diameter Signaling Router (DSR). | Required action: Apply updates per vendor instructions. | Due date: 2022-05-03 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2020-2555
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-502 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Multiple Products |
| Due Date | 2022-05-03 |
| Date Added | 2021-11-03 |
| Vendorproject | Oracle |
| Vulnerabilityname | Oracle Multiple Products Remote Code Execution Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-10-02 08:10 CEST
| Updated: 2026-10-02 08:10 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 3908e609-a9bc-48ff-ab18-feab61e6eea6
Exploited: Yes
Timestamps
First Seen: 2021-11-03
Asserted: 2021-11-03
Scope
Notes: Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Caching,CacheStore,Invocation). Supported versions that are... | Affected: Oracle / WebCenter Portal, Utilities Framework | CVSS: 9.8 (CRITICAL) | EPSS: 0.97116 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Caching,CacheStore,Invocation). Supported versions that are... |
| Cve Id | CVE-2020-2555 |
| Vendor | Oracle |
| Ghsa Id | None |
| Product | WebCenter Portal, Utilities Framework |
| Added Date | 2021-11-03T00:00:00.000Z |
| Cvss Score | 9.8 |
| Epss Score | 0.97116 |
| Previous Ids | |
| Cvss Severity | CRITICAL |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.99893 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2020-2555 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-10-02 09:10 CEST
| Updated: 2026-10-02 09:10 CEST
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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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