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CVE-2013-6051

17
FAUCET Score

CVE-2013-6051 describes a denial-of-service vulnerability in Quagga 0.99.21, specifically within the bgp_attr_unknown function in bgp_attr.c. An uninitialized 'total' variable allows remote attackers to crash the bgpd daemon via a crafted BGP update. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and potential for partial availability impact. There is no evidence of active exploitation, no known exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.99.21CPE matchmatch criteria
cpe:2.3:a:quagga:quagga:0.99.21:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.25%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0225 is in the 69th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (1)

redhatCVE-2013-6051Moderate

quagga: bgp crash when receiving bgp updates

Nov 25, 2013

References

bugs.debian.org / cgi-bin/bugreport.cgi
git.savannah.gnu.org / gitweb
debian.org / security/2013/dsa-2803