OSV-2025-312

Heap-buffer-overflow in ZSTD_decompressMultiFrame

No scoreFix available

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=414856644

Crash type: Heap-buffer-overflow READ 1
Crash state:
ZSTD_decompressMultiFrame
ZSTD_decompressDCtx
zstd_wrap_decompress

What each source reports

OSV No score

Heap-buffer-overflow in ZSTD_decompressMultiFrame

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=414856644

Crash type: Heap-buffer-overflow READ 1
Crash state:
ZSTD_decompressMultiFrame
ZSTD_decompressDCtx
zstd_wrap_decompress

Record: OSV-2025-312
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`c-blosc2` OSS-Fuzz	Listed versions, plus commit ranges v2.1.0v2.1.1v2.10.0v2.10.1v2.10.2 Show 45 moreShow less v2.10.3v2.10.4v2.10.5v2.11.0v2.11.1v2.11.2v2.11.3v2.12.0v2.13.0v2.13.1v2.13.2v2.14.0v2.14.1v2.14.2v2.14.3v2.14.4v2.15.0v2.15.1v2.15.2v2.16.0v2.17.0v2.17.1v2.18.0v2.19.0v2.19.1v2.2.0v2.20.0v2.21.0v2.21.1v2.21.2v2.21.3v2.22.0v2.23.0v2.23.1v2.3.0v2.3.1v2.4.0v2.4.1v2.4.2v2.4.3v2.5.0v2.6.0v2.6.1v2.7.0v2.7.1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

OSV-2025-312 is a vulnerability with no CVSS score yet in c-blosc2, published May 2, 2025. No source lists public exploit code. A source reports a fix.

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=414856644

This page doesn't list everything

Left out here: 7 versions. The JSON record has them.