CVE-2026-119602
3.7 LOWpublic exploit availablePublished 2026-10-30 · Updated 2026-10-30
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
libmspack through 0.11alpha contains an uninitialized memory disclosure vulnerability in the MS-ZIP decompressor that allows attackers to leak heap data via unchecked back-reference distances. Attackers can supply a crafted MS-ZIP CAB file whose first block begins with a back-reference, causing cabd->extract() to write up to 32 KiB of stale heap memory into extracted output.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-908
Public exploit & PoC references
All references
- https://github.com/kyz/libmspack
- https://github.com/kyz/libmspack/blob/v0.11alpha/libmspack/mspack/mszipd.c#L264-L276
- https://github.com/kyz/libmspack/issues/60
- https://hackmd.io/@haindpwn/libmspack-mszip-uninit-window-info-leak
- https://www.vulncheck.com/advisories/libmspack-through-0-11alpha-uninitialized-memory-disclosure-via-ms-zip-decompressor-window
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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