Out-of-bounds read in LibreSSL - #VU153348
Published: October 6, 2026
Vulnerability identifier: #VU153348
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to trigger an out-of-bounds read.
The vulnerability exists due to an out-of-bounds read in DTLS retransmission handling when a retransmission is interrupted. A remote attacker can trigger interrupted DTLS retransmission to trigger an out-of-bounds read.
Affected software
LibreSSL
Remediation
Install security update from vendor's website.
LibreSSL - update to 4.3.3