CVE WatchSep 25, 2026

CVE-2026-88373

libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a ze

CVSS

7.5

High

EPSS

0.3%

p26

KEV

—

Exploit Today

0-100

Published: Sep 24, 2026 · Last modified: Sep 25, 2026 · CWE-476

EPSS · 30d

0.2%EPSS · 30 days0.3%

2026-09-252026-10-19

Technical description

libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service.

Official references

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