SB2026093080 - FreeBSD update for OpenSSL



SB2026093080 - FreeBSD update for OpenSSL

Published: September 30, 2026

Security Bulletin ID SB2026093080
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-84782)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to disclose heap memory contents or cause a denial of service.

The vulnerability exists due to an out-of-bounds read in OpenSSL DTLS retransmission handling when retransmitting a suspended DTLS handshake message write. A remote attacker can cause a suspended handshake message to be retransmitted to disclose heap memory contents or cause a denial of service.

Only applications that use DTLS are affected.


Remediation

Install update from vendor's website.