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CVE-2012-0255

20
FAUCET Score

CVE-2012-0255 describes a denial-of-service vulnerability in the BGP implementation of Quagga before version 0.99.20.1. Remote attackers can exploit a flaw in how the software handles malformed Four-octet AS Number Capabilities within OPEN messages, leading to an assertion failure and daemon exit. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and requires no authentication or complex attack vectors. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.99.20CPE matchmatch criteria
cpe:2.3:a:quagga:quagga:*:*:*:*:*:*:*:*
0.95CPE matchmatch criteria
cpe:2.3:a:quagga:quagga:0.95:*:*:*:*:*:*:*
0.96CPE matchmatch criteria
cpe:2.3:a:quagga:quagga:0.96:*:*:*:*:*:*:*
0.96.1CPE matchmatch criteria
cpe:2.3:a:quagga:quagga:0.96.1:*:*:*:*:*:*:*
0.96.2CPE matchmatch criteria
cpe:2.3:a:quagga:quagga:0.96.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.49%
Probability of exploitation in next 30 days
EPSS Percentile
87.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0349 is in the 84th percentile among its peer group of 23,701 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: quagga-0:0.99.15-7.el6_3.2
View patch

Vendor Advisories (1)

redhatCVE-2012-0255Low

(bgpd): Assertion failure by processing malformed AS4 capability in BGP OPEN message

Mar 28, 2012

References

lists.fedoraproject.org / pipermail/package-announce/2012-April/078794.html
lists.fedoraproject.org / pipermail/package-announce/2012-April/078910.html
lists.fedoraproject.org / pipermail/package-announce/2012-April/078926.html
rhn.redhat.com / errata/RHSA-2012-1259.html
secunia.com / advisories/48949
debian.org / security/2012/dsa-2459
kb.cert.org / vuls/id/551715
US Government Resource