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CVE record · CVE-2024-5535

SSL_select_next_proto buffer overread

CVSS 9.1 CriticalCriticalEPSS 0.056 · 92nd percentile

Critical, because:

  • CVSS score 9.1: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: openssl) at 27 Jun 2024, 10:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
OpenSSL OpenSSL
  • affected 3.3.0 to before 3.3.2 semver
  • affected 3.2.0 to before 3.2.3 semver
  • affected 3.1.0 to before 3.1.7 semver
  • affected 3.0.0 to before 3.0.15 semver
  • affected 1.1.1 to before 1.1.1za custom
  • affected 1.0.2 to before 1.0.2zk custom
Other versions: unaffected
Identifiers
CVE-2024-5535
CNA
openssl
Weakness (CWE)
CWE-125
Tags
Published
27 Jun 2024
Updated
15 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.1 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.056, the 92nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 27 Jun 2024. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.