Common Weakness Enumeration
CWE-130
AllowedImproper Handling of Length Parameter Inconsistency
Abstraction: Base · Status: Incomplete
The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.
204 vulnerabilities reference this CWE, most recent first.
CVE-2026-71337 (GCVE-0-2026-71337)
Vulnerability from cvelistv5 – Published: 2026-09-08 17:12 – Updated: 2026-10-01 22:54
VLAI
EPSS
VEX
Title
Windows Storage Management Provider Elevation of Privilege Vulnerability
Summary
Stack-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 18:17 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7725
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7725
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7582
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7582
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9445
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9445
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.2954
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5622
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33438
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33438
(custom)
|
Date Public
2026-09-08 14:00
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CVE-2026-67292 (GCVE-0-2026-67292)
Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 19:09
VLAI
EPSS
VEX
Title
FreeRDP before 3.29.0 WebSocket Ping Buffer Over-disclosure
Summary
FreeRDP before 3.29.0 contains a buffer over-disclosure vulnerability in the gateway WebSocket transport (libfreerdp/core/gateway/websocket.c). The client's Pong reply reuses a fixed 1024-byte response stream whose length is not sealed to the actual received Ping payload, so a malicious gateway/WebSocket peer sending a non-empty Ping control frame causes the client to reply with an overlong Pong that discloses bytes beyond the received payload (the peer receives the masking key and can unmask the reply). A zero-length Ping reaches an assertion and terminates the client (denial of service).
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 19:09 UTC
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://github.com/FreeRDP/FreeRDP/commit/f3b4347… | patch |
| https://www.vulncheck.com/advisories/freerdp-befo… | third-party-advisory |
Impacted products
Date Public
2026-07-15 00:00
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CVE-2026-60060 (GCVE-0-2026-60060)
Vulnerability from cvelistv5 – Published: 2026-07-17 04:13 – Updated: 2026-07-17 13:09
VLAI
EPSS
VEX
Summary
Improper Handling of Length Parameter Inconsistency (CWE-130) vulnerability exists in TTSSH2 plugin of Tera Term provided by TeraTerm Project. When Tera Term attempts to establish an SSH connection to a server set up by an attacker, out-of-bounds read/write may occur. As a result, the contents of adjacent memory regions may be transmitted to the server, and Tera Term may behave unexpected or terminate abnormally.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 13:09 UTC
CWE
- CWE-130 - Improper handling of length parameter inconsistency
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TeraTerm Project | TTSSH2 |
Affected:
1.00 alpha1 , ≤ 3.6.1
(semver)
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CVE-2026-58097 (GCVE-0-2026-58097)
Vulnerability from cvelistv5 – Published: 2026-08-26 05:28 – Updated: 2026-08-27 03:57
VLAI
EPSS
VEX
Title
ppp(8): missing length validation in mp_SetEnddisc()
Summary
mp_SetEnddisc() copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflow via the ppp(8) command interface.
A local user with access to the ppp(8) command interface can crash ppp(8) or potentially execute arbitrary code as root.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 00:00 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
Impacted products
Date Public
2026-08-25 19:45
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CVE-2026-58096 (GCVE-0-2026-58096)
Vulnerability from cvelistv5 – Published: 2026-08-26 05:28 – Updated: 2026-08-27 16:15
VLAI
EPSS
VEX
Title
ppp(8): missing length validation in LcpDecodeConfig()
Summary
LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write.
A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp(8) or potentially execute arbitrary code as root.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 03:57 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
Impacted products
Date Public
2026-08-25 19:45
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CVE-2026-54466 (GCVE-0-2026-54466)
Vulnerability from cvelistv5 – Published: 2026-07-17 20:53 – Updated: 2026-07-20 19:11
VLAI
EPSS
VEX
Title
websocket-driver: Message corruption via abuse of protocol length headers
Summary
websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.7.5, the frame format in draft versions of the WebSocket protocol includes a length header that allows an arbitrarily large integer to be encoded as a sequence of bytes with the high bit set. By sending an indefinite sequence of bytes with values 0x80 or above, a client can make the server parse these bytes into an ever-growing integer in lib/websocket/driver/draft75.js; because JavaScript numbers are 64-bit floating point values, this number will eventually lose precision and lead to the subsequent payload being parsed incorrectly. This issue is fixed in version 0.7.5.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 19:01 UTC
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/faye/websocket-driver-node/sec… | x_refsource_CONFIRM |
| https://github.com/faye/websocket-driver-node/com… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| faye | websocket-driver-node |
Affected:
< 0.7.5
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CVE-2026-48487 (GCVE-0-2026-48487)
Vulnerability from cvelistv5 – Published: 2026-07-17 18:28 – Updated: 2026-07-20 19:26
VLAI
EPSS
VEX
Title
Zeroconf: Unvalidated rdlength in record payload readers allows LAN-local cache corruption via crafted mDNS packet
Summary
Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.16, _read_character_string and _read_string in src/zeroconf/_protocol/incoming.py advanced self.offset by attacker-declared RDLENGTH without checking it against self._data_len, allowing unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb) to send a TXT, HINFO, or A/AAAA record with rdlength=65535 and seed DNSCache and ServiceInfo.properties with truncated, attacker-shaped key/value or address records. This issue is fixed in version 0.149.16.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 19:25 UTC
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/python-zeroconf/python-zerocon… | x_refsource_CONFIRM |
| https://github.com/python-zeroconf/python-zerocon… | x_refsource_MISC |
| https://github.com/python-zeroconf/python-zerocon… | x_refsource_MISC |
| https://github.com/python-zeroconf/python-zerocon… | x_refsource_MISC |
| https://github.com/python-zeroconf/python-zerocon… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| python-zeroconf | python-zeroconf |
Affected:
< 0.149.16
|
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CVE-2026-47692 (GCVE-0-2026-47692)
Vulnerability from cvelistv5 – Published: 2026-06-26 17:59 – Updated: 2026-06-26 19:07
VLAI
EPSS
VEX
Title
Envoy: PROXY Protocol v2 header generator emits "skipped" TLVs, causing 65 KB attacker-controlled spillover into the upstream application stream
Summary
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, PROXY Protocol v2 header generator emits TLVs beyond the maximum length of 65535 bytes, causing a mismatch between bytes written and the length field in the header. This can result in smuggled bytes on the upstream request. This vulnerability is fixed in 1.35.13, 1.36.9, 1.37.5, and 1.38.3.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 19:07 UTC
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/envoyproxy/envoy/security/advi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.38.0, < 1.38.3
Affected: >= 1.37.0, < 1.37.5 Affected: >= 1.36.0, < 1.36.9 Affected: >= 1.34.0, < 1.35.13 |
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CVE-2026-45681 (GCVE-0-2026-45681)
Vulnerability from cvelistv5 – Published: 2026-06-02 15:25 – Updated: 2026-06-02 18:05
VLAI
EPSS
VEX
Title
OpenTelemetry eBPF Instrumentation: CPU-mismatch fallback uses 256-byte buffer with 8KB size
Summary
OpenTelemetry eBPF Instrumentation provides eBPF instrumentation based on the OpenTelemetry standard. Prior to version 0.9.0, the per-CPU message-buffer fallback path uses a 256-byte backup buffer but preserves the original payload size, which can be up to 8KB. If a CPU mismatch occurs, OBI can read beyond the fallback buffer and leak adjacent memory into telemetry. This issue has been patched in version 0.9.0.
Severity
5.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 18:05 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/open-telemetry/opentelemetry-e… | x_refsource_CONFIRM |
| https://github.com/open-telemetry/opentelemetry-e… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-telemetry | opentelemetry-ebpf-instrumentation |
Affected:
< 0.9.0
|
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CVE-2026-45615 (GCVE-0-2026-45615)
Vulnerability from cvelistv5 – Published: 2026-05-29 13:24 – Updated: 2026-05-29 16:19
VLAI
EPSS
VEX
Title
mouse07410/asn1c: 1-byte Heap Out-of-Bounds Read in `INTEGER_decode_oer` via Malformed OER Payload
Summary
mouse07410/asn1c is an ASN.1 compiler. In 1.4 and earlier, a memory safety vulnerability was identified in the OER decoding skeleton files generated by asn1c (specifically INTEGER_oer.c). When parsing a maliciously crafted, zero-length OER payload for a variable-length, non-negative INTEGER type, the decoder fails to validate the required bytes before extracting the Most Significant Bit (MSB). This forces a precise 1-byte Heap Out-of-Bounds (OOB) Read. Because asn1c generated code is primarily deployed to parse untrusted network inputs (such as V2X network protocols, 5G telecom headers, or X.509 certificates), when the decoder processes untrusted network-originated input, a remote attacker can exploit this to cause a Denial of Service (DoS) or trigger incorrect integer interpretation in downstream applications (e.g., protocol state poisoning or logic bypass).
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-29 16:19 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/mouse07410/asn1c/security/advi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mouse07410 | asn1c |
Affected:
<= 1.4
|
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Mitigation
Implementation
When processing structured incoming data containing a size field followed by raw data, ensure that you identify and resolve any inconsistencies between the size field and the actual size of the data.
Mitigation
Implementation
Do not let the user control the size of the buffer.
Mitigation
Implementation
Validate that the length of the user-supplied data is consistent with the buffer size.
CAPEC-47: Buffer Overflow via Parameter Expansion
In this attack, the target software is given input that the adversary knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.