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.
Related CPE's
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References
CVSS impact metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.7 · Low
Information
Source identifier
Vulnerability status
Deferred
Published
2026-10-30T14:16:48.700Z
1 hour agoLast modified
2026-10-30T14:16:48.850Z
1 hour ago