Name: CVE-2026-33164: Heap-based Buffer Overflow
Creator: Rapid7
Published: 2026-03-20T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-33164, CVSS 7.5, EPSS 0.00535

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.

CVSS Details

CVSS 4.0 Base Score: 8.7 (HIGH)
CVSS 4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade libde265	Jun 18, 2026	Mar 20, 2026
Amazon_linux_2023	—	Upgrade libde265-debuginfoUpgrade libde265-debugsourceUpgrade libde265Upgrade libde265-devel	Apr 14, 2026	Mar 20, 2026
Debian	—	Upgrade libde265	Apr 28, 2026	Apr 28, 2026
Ubuntu	—	Upgrade libde265-0No solution existsUpgrade libde265-0 (Ubuntu Pro)Upgrade libde265-devUpgrade libde265-dev (Ubuntu Pro)	Jul 21, 2026	Jul 20, 2026

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CVSS Details

Covered by Rapid7

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