CVE-2007-4826: n/a vulnerability

CVE-2007-4826: bgpd in Quagga before 0.99.9 allows explicitly configured BGP peers to cause a denial of service (crash) vi...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 15:08 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2007-4826 is a denial-of-service flaw in Quagga bgpd before 0.99.9. A configured BGP peer could send malformed BGP data that crashes the routing daemon, potentially interrupting routing on affected systems. The sources do not report data theft or code execution. Exposure is most likely in legacy systems running Quagga bgpd older than 0.99.9, including distributions covered by the listed vendor advisories. Systems not running bgpd, not using Quagga, or already updated are unlikely to be affected. Treat as priority where legacy Quagga bgpd supports production routing. The risk is availability disruption, not confirmed compromise. If no Quagga bgpd exists or all packages are fixed, residual urgency is low. Mitigation focus: Upgrade Quagga to 0.99.9 or a vendor-fixed package.; Review Debian, Fedora, Ubuntu, Red Hat, Trustix, and Sun advisories where applicable.; Restrict BGP peering to trusted, expected neighbors only..

Prepared: Jun 29, 2026, 03:38 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 12, 2007, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

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2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
quagga-bgpd-dos(36551)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

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CWE details

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