Stack-based buffer overflow in the nestlex function in nestlex.c in Socat 1.5.0.0 through…
Priority LOW 35CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Stack-based buffer overflow in the nestlex function in nestlex.c in Socat 1.5.0.0 through 1.7.1.2 and 2.0.0-b1 through 2.0.0-b3, when bidirectional data relay is enabled, allows context-dependent attackers to execute arbitrary code via long command-line arguments.
Why it matters now
EPSS 0.02755 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dest-unreach:socat:1.5.0.0:*:*:*:*:*:*:* | 1.5.0.0 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:1.6.0.0:*:*:*:*:*:*:* | 1.6.0.0 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:1.6.0.1:*:*:*:*:*:*:* | 1.6.0.1 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:1.7.0.0:*:*:*:*:*:*:* | 1.7.0.0 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:1.7.0.1:*:*:*:*:*:*:* | 1.7.0.1 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:1.7.1.0:*:*:*:*:*:*:* | 1.7.1.0 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:1.7.1.1:*:*:*:*:*:*:* | 1.7.1.1 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:2.0.0:b1:*:*:*:*:*:* | 2.0.0 b1 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:2.0.0:b2:*:*:*:*:*:* | 2.0.0 b2 | Vulnerable | dest-unreach |
| cpe:2.3:a:dest-unreach:socat:2.0.0:b3:*:*:*:*:*:* | 2.0.0 b3 | Vulnerable | dest-unreach |
- cpe:2.3:a:dest-unreach:socat:1.5.0.0:*:*:*:*:*:*:* Versions 1.5.0.0 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:1.6.0.0:*:*:*:*:*:*:* Versions 1.6.0.0 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:1.6.0.1:*:*:*:*:*:*:* Versions 1.6.0.1 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:1.7.0.0:*:*:*:*:*:*:* Versions 1.7.0.0 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:1.7.0.1:*:*:*:*:*:*:* Versions 1.7.0.1 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:1.7.1.0:*:*:*:*:*:*:* Versions 1.7.1.0 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:1.7.1.1:*:*:*:*:*:*:* Versions 1.7.1.1 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:2.0.0:b1:*:*:*:*:*:* Versions 2.0.0 b1 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:2.0.0:b2:*:*:*:*:*:* Versions 2.0.0 b2 Vulnerable ·dest-unreach
- cpe:2.3:a:dest-unreach:socat:2.0.0:b3:*:*:*:*:*:* Versions 2.0.0 b3 Vulnerable ·dest-unreach
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2010-2799
- 2026-10-03 Alias added: GHSA-4qqf-vxv4-9698
References
More dest-unreach Socat vulnerabilities
- TI-2026-40502 socat 1.8.0.0 - 1.8.1.1 Heap Buffer Overflow via SOCKS5 Reply Parser CVSS 4.0CRITICAL 9.2
- TI-2015-01256 The signal handler implementations in socat before 1.7.3.0 and 2.0.0-b8 allow remote… CVSS 3.0HIGH 7.5
- TI-2016-02025 The OpenSSL address implementation in Socat 1.7.3.0 and 2.0.0-b8 does not use a prime… CVSS 3.0MEDIUM 5.3
- TI-2012-00212 Heap-based buffer overflow in the xioscan_readline function in xio-readline.c in socat… CVSS 2.0MEDIUM 6.2
- TI-2013-03117 socat 1.2.0.0 before 1.7.2.2 and 2.0.0-b1 before 2.0.0-b6, when used for a listen type… CVSS 2.0LOW 2.6
- TI-2014-00019 Stack-based buffer overflow in socat 1.3.0.0 through 1.7.2.2 and 2.0.0-b1 through… CVSS 2.0LOW 1.9
Sources
- CVE-2010-2799 · CVE Program
- CVE-2010-2799 · NVD
- FIRST EPSS
- GHSA-4qqf-vxv4-9698 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-2799 · Red Hat security data · CC BY 4.0
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