What’s Vulnerable › Vulnerabilities

CVE-2009-2629

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 75.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2009-09-15 · updated 2026-06-16
• Weakness: CWE-787

Description

Buffer underflow in src/http/ngx_http_parse.c in nginx 0.1.0 through 0.5.37, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.15 allows remote attackers to execute arbitrary code via crafted HTTP requests.

Affected products

• Debian Linux: 4.0, 5.0, 6.0
• nginx: from 0.1.0 before 0.5.38; from 0.6.0 before 0.6.39; from 0.7.0 before 0.7.62; from 0.8.0 before 0.8.15 — fixed in 0.5.38, 0.6.39, 0.7.62, 0.8.15
• Fedoraproject Fedora: 10, 11, 12

How to fix

Upgrade to a fixed version: nginx 0.5.38, 0.6.39, 0.7.62, 0.8.15. Check the vendor advisory for mitigations.

References

• http://nginx.net/CHANGES
• http://nginx.net/CHANGES-0.5
• http://nginx.net/CHANGES-0.6
• http://nginx.net/CHANGES-0.7
• http://sysoev.ru/nginx/patch.180065.txt
• http://www.debian.org/security/2009/dsa-1884
• http://www.kb.cert.org/vuls/id/180065
• https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00428.html
• https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00442.html
• https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00449.html
• http://nginx.net/CHANGES
• http://nginx.net/CHANGES-0.5

Get alerted when CVE-2009-2629 or the next vulnerability affects your stack