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CVE-2026-101302

6.5 medium SSVC exploitation: none Analyzed
NVD · CVE.org

TLS 1.3 embeds the actual record type as the last non-zero byte of the decrypted payload, optionally followed by zero padding. The code which searches for the inner record type had an off-by-one bug which could be triggered by an invalid frame, leading to an underflow followed by an unconditional NULL pointer dereference, causing a kernel panic. A remote TLS 1.3 peer can send a specially crafted record to trigger a kernel panic, resulting in a Denial of Service (DoS).

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 5

  1. Cpes+29 CPE criteria (now 29)NVD modified 2026-10-20 00:16
  2. StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-20 00:16
  3. StatusReceived → Awaiting AnalysisNVD modified 2026-10-15 16:17
  4. CVSS6.5 (v3.1, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)NVD modified 2026-10-15 14:17
  5. First seenunscoredNVD modified 2026-10-15 07:17

Affected (CPE criteria) 29

  • cpe:2.3:o:freebsd:freebsd:14.4:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p7:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p8:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p9:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.5:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p11:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p12:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p13:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:p3:*:*:*:*:*:*

References 1