CVE-2015-2310

Integer overflow in layout.c++ in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1...

9.1 CriticalFix available

Integer overflow in layout.c++ in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 allows remote peers to cause a denial of service or possibly obtain sensitive information from memory via a crafted message, related to pointer validation.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: High

Exploit likelihood

1.80%Up 0.8 points since Feb 4, 2022

What each source reports

NVD Score used 9.1

Record: CVE-2015-2310
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.0: 6.4 MediumAV:N/AC:L/Au:N/C:P/I:N/A:P
Weakness: CWE-190
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-2310
Updated: 2026-11-02

EUVDEUVD-2015-2405 No score

Record: EUVD-2015-2405
Updated: 2026-11-03

GitHub AdvisoriesGHSA-f93h-h245-gfpc 9.1

Integer overflow in layout.c++ in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1...

Record: GHSA-f93h-h245-gfpc
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness: CWE-190
Updated: 2026-11-02

OSV 9.1

Record: CVE-2015-2310
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2015-2310 9.1

Record: DEBIAN-CVE-2015-2310
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2015-2310 9.1

Record: UBUNTU-CVE-2015-2310
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Updated: 2026-11-02

Affected products

capnproto

Affected packages

Affected packages
Package	Affected	Fixed
`capnproto` Debian:12	before 0.4.1-3	0.4.1-3
`capnproto` Debian:13	before 0.4.1-3	0.4.1-3
`capnproto` Debian:14	before 0.4.1-3	0.4.1-3
`capnproto` Ubuntu:14.04:LTS	before 0.4.0-1ubuntu2.1, plus listed versions 0.2.1-10.4.0~git20131030+e7d2778-0ubuntu10.4.0-1ubuntu10.4.0-1ubuntu2	0.4.0-1ubuntu2.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-2310 is a critical vulnerability (CVSS 9.1) in Capnproto, published August 9, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.80%, the 78th percentile. Fixed in capnproto 0.4.1-3.

References

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