CVE-2026-33164CWE-122

NULL Pointer Dereference in libde265

High · published March 20, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
44.3
In the wild
Unconfirmed
What it is

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a malformed H.265 PPS NAL unit causes a segmentation fault in pic_parameter_set::set_derived_values(). This issue has been patched in version 1.0.17.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00535 · 44.3th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-03-20T20:33Z
EPSS history
Timeline
  • 20 MAR 20:33Z
    NULL Pointer Dereference in libde265
    cvelistv5