ESB-2026.4325 PUBLISHED CVSS 7.5 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4325 libde265 security update 28 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: libde265 Publisher: Debian Operating System: Debian GNU/Linux Resolution: Patch/Upgrade CVE Names: CVE-2026-33164 CVE-2023-51792 CVE-2026-33165 Original Bulletin: https://lists.debian.org/debian-lts-announce/2026/04/msg00032.html Comment: CVSS (Max): 7.5 CVE-2026-33164 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS Source: CISA-ADP, [NIST], GitHub Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H EPSS (Max): 0.1% (20th) CVE-2026-33164 2026-04-27 - --------------------------BEGIN INCLUDED TEXT-------------------- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4550-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Andreas Henriksson April 27, 2026 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : libde265 Version : 1.0.11-0+deb11u4 CVE ID : CVE-2023-51792 CVE-2026-33164 CVE-2026-33165 Debian Bug : 1131468 1131469 It was found that libde265, an open source implementation of the H.265 video codec, had multiple vulnerabilities which could lead to both stack and heap out of bound writes that could lead to denial of service, etc. For Debian 11 bullseye, these problems have been fixed in version 1.0.11-0+deb11u4. We recommend that you upgrade your libde265 packages. For the detailed security status of libde265 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libde265 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debianlibde265

Timeline

References

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