CVE-2026-101302

Medium

Description

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).

SeverityMedium
CVSS6.5
Exploit probability—
ProductFreebsd
PublishedOct 15, 2026
First seenOct 15, 2026

How to fix

Affected products

ProductAffected versionsFixed in
freebsd freebsd14.4, 14.5, 15.0, 15.1—

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