← Vulnerability feed

Vulnerability record · CVE-2026-33164 · published 20 March 2026

CVE-2026-33164: Struktur libde265 heap-based buffer overflow vulnerability

Struktur · Libde265

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.

8.7 CVSS 4.0 High EPSS 0.52% · top 58.5% CWE-122 · Heap-based buffer overflowCWE-476 · NULL pointer dereference
8.7CVSS 4.0 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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: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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/strukturag/libde265/releases/tag/v1.0.17 Release Notes
https://github.com/strukturag/libde265/security/advisories/GHSA-wqrf-6rf5-v78r ExploitVendor Advisory

Track CVE-2026-33164 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-1253Struktur libde265 heap-based buffer overflow vulnerabilityHeap-based Buffer Overflow in GitHub repository strukturag/libde265 prior to and including 1.0.8. The fix is established in commit 8e89fe0e175d2870c3…EPSS 2.1%8.8CVE-2023-49465Struktur libde265 out-of-bounds write vulnerabilityLibde265 v1.0.14 was discovered to contain a heap-buffer-overflow vulnerability in the derive_spatial_luma_vector_prediction function at motion.cc.EPSS 0.80%8.8CVE-2023-49467Struktur libde265 out-of-bounds write vulnerabilityLibde265 v1.0.14 was discovered to contain a heap-buffer-overflow vulnerability in the derive_combined_bipredictive_merging_candidates function at mo…EPSS 0.77%8.8CVE-2023-49468Struktur libde265 out-of-bounds write vulnerabilityLibde265 v1.0.14 was discovered to contain a global buffer overflow vulnerability in the read_coding_unit function at slice.cc.EPSS 0.87%8.8CVE-2023-27103Struktur libde265 out-of-bounds write vulnerabilityLibde265 v1.0.11 was discovered to contain a heap buffer overflow via the function derive_collocated_motion_vectors at motion.cc.EPSS 0.85%8.8CVE-2020-21598Struktur libde265 out-of-bounds write vulnerabilitylibde265 v1.0.4 contains a heap buffer overflow in the ff_hevc_put_unweighted_pred_8_sse function, which can be exploited via a crafted a file.EPSS 1.8%8.1CVE-2023-43887Struktur libde265 classic buffer overflow vulnerabilityLibde265 v1.0.12 was discovered to contain multiple buffer overflows via the num_tile_columns and num_tile_row parameters in the function pic_paramet…EPSS 0.98%7.8CVE-2022-47664Struktur libde265 classic buffer overflow vulnerabilityLibde265 1.0.9 is vulnerable to Buffer Overflow in ff_hevc_put_hevc_qpel_pixels_8_sseEPSS 0.31%

Source: NIST National Vulnerability Database (record CVE-2026-33164), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.