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CVE-2009-2699

30
FAUCET Score

CVE-2009-2699 describes a denial-of-service vulnerability in the Apache Portable Runtime (APR) library, specifically affecting the Solaris pollset feature, which is used by Apache HTTP Server and other products. This flaw, rated High severity (CVSS 7.5), allows remote attackers to cause a daemon hang through unspecified HTTP requests due to improper error handling. While the vulnerability has a high risk score, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0, < 2.2.14CPE matchmatch criteria
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
< 1.3.9CPE matchmatch criteria
cpe:2.3:a:apache:portable_runtime:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
14.17%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1417 is in the 94th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-2699Moderate

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

Oct 5, 2009

References

marc.info
Issue TrackingMailing ListThird Party Advisory
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
exchange.xforce.ibmcloud.com / vulnerabilities/53666
Third Party AdvisoryVDB Entry
issues.apache.org / bugzilla/show_bug.cgi
Issue TrackingVendor Advisory
lists.apache.org / thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r2295080a257bad27ea68ca0af12fc715577f9e84801eae116a33107e%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/rad2acee3ab838b52c04a0698b1728a9a43467bf365bd481c993c535d%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/reb7c64aeea604bf948467d9d1cab8ff23fa7d002be1964bcc275aae7%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
lists.apache.org / thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
Mailing ListPatch
apache.org / dist/httpd/CHANGES_2.2.14
Broken LinkVendor Advisory
mandriva.com / security/advisories
Broken Link
oracle.com / technetwork/topics/security/cpuapr2013-1899555.html
Third Party Advisory
securityfocus.com / bid/36596
PatchThird Party AdvisoryVDB Entry