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CVE record · CVE-2026-101303

IPv6 UDP sendto(2) bypasses jail loopback restriction

CVSS 7.5 HighEPSS 0.0021 · 11th percentile

Published by the CVE Program (CNA: freebsd) at 15 Oct 2026, 06:58 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
FreeBSD FreeBSD
  • affected 15.1-RELEASE to before p4 release
  • affected 15.0-RELEASE to before p14 release
  • affected 14.5-RELEASE to before p1 release
  • affected 14.4-RELEASE to before p10 release
Other versions: unknown
Identifiers
CVE-2026-101303
CNA
freebsd
Weakness (CWE)
CWE-941
Tags
Published
15 Oct 2026
Updated
16 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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.0021, the 11th 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 15 Oct 2026. 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.