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.
CVE-2015-2310
CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence
Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.1
- EG Score
- 9.1(medium)
- EPSS
- 75.9%
- KEV
- Not listed
Published
August 9, 2017
Last Modified
May 13, 2026
Advisory Details (4)
Auto-updated May 22, 2026Patch available.
generic
SECURITY: Integer overflow in pointer validation. · capnproto/capnproto@f343f0d · GitHub
https://github.com/capnproto/capnproto/commit/f343f0dbd0a2e87f17cd74f14186ed73e3fbdbfageneric
capnproto/security-advisories/2015-03-02-0-c++-integer-overflow.md at master · capnproto/capnproto · GitHub
https://github.com/capnproto/capnproto/blob/master/security-advisories/2015-03-02-0-c%2B%2B-integer-overflow.mdgeneric Patch Available
#780565 - capnproto: CVE-2015-2310: Integer overflow in pointer validation - Debian Bug report logs
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=780565generic
oss-security - Re: CVE Request: Cap'n Proto: Several issues
http://www.openwall.com/lists/oss-security/2015/03/17/3Data Freshness Timeline
(refreshed 10× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
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- 2026-06-05 21:57 UTCOSV refresh
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- 2026-05-22 10:48 UTCEG score recompute
- 2026-05-22 10:48 UTCGHSA enrichment
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- 2026-05-18 21:30 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2015-2310?
CVE-2015-2310 is a critical vulnerability published on August 9, 2017. 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.
When was CVE-2015-2310 disclosed?
CVE-2015-2310 was first published in the National Vulnerability Database on August 9, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-2310 actively exploited?
CVE-2015-2310 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2015-2310?
CVE-2015-2310 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2015-2310?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-2310, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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