How severe is CVE-2012-0255?

CVE-2012-0255 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-0255 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0255?

CVE-2012-0255 primarily affects Quagga. In total, 40 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0255?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-0255 published?

CVE-2012-0255 was published on 2012-04-05 and last updated on 2026-06-16.

CVE-2012-0255

CVE-2012-0255 is a medium-severity vulnerability in Quagga with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Quagga
Published: 2012-04-05
Last modified: 2026-06-16

Description

The BGP implementation in bgpd in Quagga before 0.99.20.1 does not properly use message buffers for OPEN messages, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a message associated with a malformed Four-octet AS Number Capability (aka AS4 capability).

Frequently asked questions

What is CVE-2012-0255?: The BGP implementation in bgpd in Quagga before 0.99.20.1 does not properly use message buffers for OPEN messages, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a message associated with a malformed Four-octet AS Number Capability (aka AS4 capability).
How severe is CVE-2012-0255?: CVE-2012-0255 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-0255 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0255?: CVE-2012-0255 primarily affects Quagga. In total, 40 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0255?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0255 published?: CVE-2012-0255 was published on 2012-04-05 and last updated on 2026-06-16.

References

Affected products (40)

cpe:2.3:a:quagga:quagga:*:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.95:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.96:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.96.1:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.96.2:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.96.3:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.96.4:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.96.5:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.97.0:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.97.1:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.97.2:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.97.3:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.97.4:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.97.5:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.98.0:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.98.1:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.98.2:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.98.3:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.98.4:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.98.5:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.98.6:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.1:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.2:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.3:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.4:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.5:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.6:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.7:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.8:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.9:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.10:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.11:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.12:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.13:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.14:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.15:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.16:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.17:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.18:*:*:*:*:*:*:*
cpe:2.3:a:quagga:quagga:0.99.19:*:*:*:*:*:*:*

More vulnerabilities in Quagga

CVE-2016-1245 — Critical (CVSS 9.8): It was discovered that the zebra daemon in Quagga before 1.0.20161017 suffered from a stack-based buffer overflow when…
CVE-2017-3224 — High (CVSS 8.2): Open Shortest Path First (OSPF) protocol implementations may improperly determine Link State Advertisement (LSA)…
CVE-2016-2342 — High (CVSS 8.1): The bgp_nlri_parse_vpnv4 function in bgp_mplsvpn.c in the VPNv4 NLRI parser in bgpd in Quagga before 1.0.20160309, when…
CVE-2021-44038 — High (CVSS 7.8): An issue was discovered in Quagga through 1.2.4. Unsafe chown/chmod operations in the suggested spec file allow users…
CVE-2018-5379 — High (CVSS 7.5): The Quagga BGP daemon (bgpd) prior to version 1.2.3 can double-free memory when processing certain forms of UPDATE…
CVE-2017-16227 — High (CVSS 7.5): The aspath_put function in bgpd/bgp_aspath.c in Quagga before 1.2.2 allows remote attackers to cause a denial of…

All CVEs affecting Quagga →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →