CVE-2007-4826

Severity: low (CVSS 3.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2007-09-12 · updated 2026-06-16

Description

bgpd in Quagga before 0.99.9 allows explicitly configured BGP peers to cause a denial of service (crash) via a malformed (1) OPEN message or (2) a COMMUNITY attribute, which triggers a NULL pointer dereference. NOTE: vector 2 only exists when debugging is enabled.

Affected products

quagga: through 0.99.8; 0.95, 0.96, 0.96.1, 0.96.2, 0.96.3, 0.96.4 (+21)

References

http://fedoranews.org/updates/FEDORA-2007-219.shtml
http://lists.debian.org/debian-security-announce/debian-security-announce-2007/msg00153.html
http://quagga.net/news2.php?y=2007&m=9&d=7#id1189190760
http://secunia.com/advisories/26744
http://secunia.com/advisories/26829
http://secunia.com/advisories/26863
http://secunia.com/advisories/27049
http://secunia.com/advisories/29743
http://sunsolve.sun.com/search/document.do?assetkey=1-26-236141-1
http://www.debian.org/security/2007/dsa-1382
http://www.mandriva.com/security/advisories?name=MDKSA-2007:182
http://www.quagga.net/download/quagga-0.99.9.changelog.txt

Get alerted when CVE-2007-4826 or the next vulnerability affects your stack