EUVD-2026-13812Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 5.5. EPSS 0.0%. No patch confirmed. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability in libde265 to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability. |
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Alert meAnalysisAIv1 – Mar 20, 2026
A remote code execution vulnerability in libde265 (CVSS 5.5). Remediation should follow standard vulnerability management procedures.
Earlier versions of this analysis (1)
libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a
RemediationAI
Monitor vendor channels for patch availability. Consider network segmentation to limit exposure if patching is delayed.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
CWE-787 (Out-of-bounds Write). Affects libde265.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctb_info.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay constant but Log2CtbSizeY changes, causing set_SliceHeaderIndex to index past the allocated image metadata array and write 2 bytes past the end of a heap allocation. This issue has been patched in version 1.0.17.
Executive ViewAI
Organizations using libde265 should be aware of moderate risk from CVE-2026-33165, a out-of-bounds write vulnerability rated CVSS 5.5. Exploitation could cause memory corruption or application crashes. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: enable ASLR/DEP, apply network segmentation.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
Related Vulnerabilities in libde265 Buffer Overflow and OOB Write
View all 2Heap-based Buffer Overflow in GitHub repository strukturag/libde265 prior to and including 1.0.8. Rated critical severit
Libde265 v1.0.14 was discovered to contain a global buffer overflow vulnerability in the read_coding_unit function at sl
Libde265 v1.0.14 was discovered to contain a heap-buffer-overflow vulnerability in the derive_combined_bipredictive_merg
Libde265 v1.0.14 was discovered to contain a heap-buffer-overflow vulnerability in the derive_spatial_luma_vector_predic
Libde265 v1.0.11 was discovered to contain a heap buffer overflow via the function derive_collocated_motion_vectors at m
Libde265 v1.0.12 was discovered to contain multiple buffer overflows via the num_tile_columns and num_tile_row parameter
Libde265 v1.0.10 was discovered to contain a heap-buffer-overflow vulnerability in the derive_spatial_luma_vector_predic
Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted payload to
Libde265 v1.0.11 was discovered to contain a segmentation violation via the function decoder_context::process_slice_segm
libde265 v1.0.10 was discovered to contain a NULL pointer dereference in the mc_chroma function at motion.cc. Rated medi
Libde265 v1.0.8 was discovered to contain a heap-buffer-overflow vulnerability via put_unweighted_pred_16_fallback in fa
Libde265 v1.0.8 was discovered to contain a heap-buffer-overflow vulnerability via put_epel_16_fallback in fallback-moti
Exploit-DB