CVE-2026-45382

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.19, `decoder_context::decode_slice_unit_tiles` (libde265/decctx.cc:920) reads `pps.CtbAddrRStoTS[ctbAddrRS]` at line 966 where `ctbAddrRS = ctbY * ctbsWidth + ctbX` is computed from PPS-supplied `colBd[]`/`rowBd[]` arrays without validating the result against `CtbAddrRStoTS.size() == sps->PicSizeInCtbsY`. A malformed PPS that passes `set_derived_values` but encodes geometry inconsistent with the SPS produces a `ctbAddrRS` past the allocation, causing a 4-byte heap-buffer-overflow READ. Version 1.0.19 fixes the issue.

CVSS

No CVSS.

References

Link	Resource
https://github.com/strukturag/libde265/security/advisories/GHSA-hwhx-x2mq-ccr9
https://github.com/strukturag/libde265/security/advisories/GHSA-hwhx-x2mq-ccr9

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-21 21:16

Updated : 2026-07-23 18:18

NVD link : CVE-2026-45382

Mitre link : CVE-2026-45382

CVE.ORG link : CVE-2026-45382

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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