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CVE-2015-7763

15
FAUCET Score

CVE-2015-7763 is a sensitive information disclosure vulnerability affecting OpenAFS versions 1.5.75 through 1.5.78, 1.6.x before 1.6.15, and 1.7.x before 1.7.33. The vulnerability stems from improper initialization of padding in Rx acknowledgement packets, allowing remote attackers to obtain sensitive information via replay attacks or network sniffing. With a CVSS score of 5.0 (medium severity), this vulnerability has a low attack complexity and requires no authentication, but only impacts confidentiality. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.5.75CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.5.75:*:*:*:*:*:*:*
1.5.76CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.5.76:*:*:*:*:*:*:*
1.5.77CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.5.77:*:*:*:*:*:*:*
1.5.78CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.5.78:*:*:*:*:*:*:*
1.6.0CPE matchmatch criteria
cpe:2.3:a:openafs:openafs:1.6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 69th percentile among its peer group of 23,723 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, 0.0 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

Remediation records are not available for this CVE.

References

lists.openafs.org / pipermail/openafs-announce/2015/000493.html
Vendor Advisory
openafs.org / dl/openafs/1.6.15/RELNOTES-1.6.15
Vendor Advisory
openafs.org / pages/security/OPENAFS-SA-2015-007.txt
Vendor Advisory
debian.org / security/2015/dsa-3387
securitytracker.com / id/1034039