OSV-2025-855

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Import Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libwebp/OSV-2025-855.yaml
JSON Data
https://api.osv.dev/v1/vulns/OSV-2025-855
Published
2025-10-24T00:16:50.919877Z
Modified
2025-10-24T00:16:50.920218Z
Summary
Use-of-uninitialized-value in AlphaReplace_SSE2
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=454314139

Crash type: Use-of-uninitialized-value
Crash state:
AlphaReplace_SSE2
WebPReplaceTransparentPixels
WebPEncode
References

Affected packages

OSS-Fuzz / libwebp

Package

Name
libwebp
Purl
pkg:generic/libwebp

Affected ranges

Type
GIT
Repo
https://chromium.googlesource.com/webm/libwebp
Events
Introduced
0d14d84bdb79f06ec6b23f4425138a1d8a5637de
Fixed
2a755e7eecd2f167a5e150551bbdbaa2c4273b84

Ecosystem specific 

{
    "severity": "MEDIUM"
}

Database specific

introduced_range

"c00d83f6642e7838a12bb03bca94237f03cc2e00:74f6afd3e6ea8ff5b231ad2248b52bdcd1666c70"