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Fencer Vulns
high 7.5

CVE-2009-2699 in the critical feed json

The Solaris pollset feature in the Event Port backend in poll/unix/port.c in the Apache Portable Runtime (APR) library before 1.3.9, as use…

published 2009-10-13 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2691

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.2%
EPSS 14.2% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

The Solaris pollset feature in the Event Port backend in poll/unix/port.c in the Apache Portable Runtime (APR) library before 1.3.9, as used in the Apache HTTP Server before 2.2.14 and other products, does not properly handle errors, which allows remote attackers to cause a denial of service (daemon hang) via unspecified HTTP requests, related to the prefork and event MPMs.

Patch / fix

  • apache http_server 2.2.14
  • apache portable_runtime 1.3.9
  • apache2 Studio Onsite 1.3, SLES for SAP 11 SP4, SLES 11 SP4 +4 more 2.2.34-70.12.1

suse advisories SUSE-SU-2017:2907-1

  • apache2 openSUSE Tumbleweed 2.4.23-4.1

opensuse advisories openSUSE-SU-2024:10268-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-2699 updated cvss 5.0

(apr): Improper pollset feature error handling on Solaris - DoS (hang)

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

14.17% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.