PT-2026-133554
CVE-2026-119602
·
Published
2026-10-30
·
Updated
2026-10-30
Description by
CVSS 4.0
6.3
MediumMetricsAV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions
libmspack versions prior to 0.11alpha
Description
The MS-ZIP decompressor contains an uninitialized memory disclosure issue. An attacker can use a specially crafted MS-ZIP CAB file where the first block starts with a back-reference, leading the
cabd->extract() function to write up to 32 KiB of stale heap memory into the extracted output. This allows for the leakage of heap data due to unchecked back-reference distances.Recommendations
Update to a version newer than 0.11alpha.
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
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