CVE-2026-110716
unshield through 1.6.2 Heap Out-of-Bounds Read via unshield_get_file_table
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 14, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 14, 2026
Description
unshield through 1.6.2 contains a heap out-of-bounds read vulnerability in unshield_get_file_table() that allows attackers to read past heap allocations via unchecked cabinet header offsets. Attackers can supply a crafted InstallShield cabinet with out-of-range file_table_offset or large file counts to crash the unshield tool or library consumers.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
unshieldtwogood |
|
References
- https://hackmd.io/@haind-pwn/unshield-header-filetable-oob-readtechnical-descriptionexploit
- https://github.com/twogood/unshield/blob/51de441ba6893f11026d4671ccef9e8e2a4634fa/lib/libunshield.c#L195technical-description
- https://github.com/twogood/unshieldproduct
- VulnCheck Advisory: unshield through 1.6.2 Heap Out-of-Bounds Read via unshield_get_file_tablethird-party-advisory
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