CVE-2009-2629

7.5 HIGH 75% exploit odds Fix listed Memory safety Web app

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 75.1% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2009-07-28 00:00 UTC ReservedThe CVE id was reserved by its CNA
2009-09-15 22:30 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:09 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 75.1% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2009-09-15 22:30 UTC
Last modified: 2026-06-16 23:09 UTC
Exploit probability: 75.1% · EPSS, next 30 days
Weakness: CWE-787 · Out-of-bounds write
Record status: Modified

Affected

f5 nginx < 0.5.38
f5 nginx < 0.6.39
f5 nginx < 0.7.62
f5 nginx < 0.8.15
Debian Linux 4.0
Debian Linux 5.0
Debian Linux 6.0
Fedoraproject Fedora 10

Attack profile CVSS 2.0 · 7.5

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2009-2629.md and follow it. Check whether this project is affected by CVE-2009-2629. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record