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CVE-2009-1251

27
FAUCET Score

CVE-2009-1251 describes a critical heap-based buffer overflow vulnerability in the OpenAFS client's cache manager, affecting versions 1.0 through 1.4.8 and 1.5.0 through 1.5.58 on Unix platforms. This flaw allows remote attackers to trigger a system crash (denial of service) or potentially execute arbitrary code by sending malformed RX responses with excessive data. With a CVSS score of 10.0, it represents a severe risk due to its network-based attack vector, low complexity, and complete impact on confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:unix:unix:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.0.2:*:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
6.44%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0644 is in the 88th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/34655
secunia.com / advisories/34684
secunia.com / advisories/42896
security.gentoo.org / glsa/glsa-201101-05.xml
debian.org / security/2009/dsa-1768
mandriva.com / security/advisories
openafs.org / security/openafs-sa-2009-001.patch
Patch
openafs.org / security/OPENAFS-SA-2009-001.txt
Vendor Advisory
securityfocus.com / bid/34407
vupen.com / english/advisories/2009/0984
vupen.com / english/advisories/2011/0117