CVE-2009-1572

The BGP daemon (bgpd) in Quagga 0.99.11 and earlier allows remote attackers to cause a denial of...

5.0 MediumFix available

The BGP daemon (bgpd) in Quagga 0.99.11 and earlier allows remote attackers to cause a denial of service (crash) via an AS path containing ASN elements whose string representation is longer than expected, which triggers an assert error.

Exploit likelihood

3.52%Down 0.8 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2009-1572
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-1572
Updated: 2026-11-02

EUVDEUVD-2009-1568 No score

Record: EUVD-2009-1568
Updated: 2026-11-03

GitHub AdvisoriesGHSA-7pv4-f272-hv95 No score

The BGP daemon (bgpd) in Quagga 0.99.11 and earlier allows remote attackers to cause a denial of...

Record: GHSA-7pv4-f272-hv95
Updated: 2026-11-02

OSV No score

Record: CVE-2009-1572
Updated: 2026-11-02

Affected products

quagga

Affected packages

Affected packages
Package	Affected	Fixed
`quagga` Debian:5.0	before 0.99.10-1lenny2, plus listed versions 0.99.10-1lenny1	0.99.10-1lenny2

History

History
Recorded	Changed	Sources
Nov 3, 2026	affected
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-1572 is a medium vulnerability (CVSS 5.0) in Quagga, published May 4, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.52%, the 89th percentile. Fixed in quagga 0.99.10-1lenny2.

References

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