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CVE-2015-2310

23
FAUCET Score

CVE-2015-2310 describes an integer overflow vulnerability in the Sandstorm Cap'n Proto library (versions before 0.4.1.1 and 0.5.x before 0.5.1.1), specifically within the layout.c++ component. This flaw allows remote attackers to trigger a denial of service or potentially leak sensitive memory information through specially crafted messages. Rated with a critical CVSS score of 9.1, this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required, leading to high impact on confidentiality and availability. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.4.1.1CPE matchmatch criteria
cpe:2.3:a:capnproto:capnproto:*:*:*:*:*:*:*:*
>= 0.5.0, < 0.5.1.1CPE matchmatch criteria
cpe:2.3:a:capnproto:capnproto:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 64th percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.debian.org / cgi-bin/bugreport.cgi
Mailing ListThird Party Advisory
github.com / capnproto/capnproto/blob/master/security-advisories/2015-03-02-0-c%2B%2B-integer-overflow.md
Third Party Advisory
github.com / capnproto/capnproto/commit/f343f0dbd0a2e87f17cd74f14186ed73e3fbdbfa
Third Party Advisory
openwall.com / lists/oss-security/2015/03/17/3
Mailing ListThird Party Advisory