CVE-2026-110716 unshield through 1.6.2 Heap Out-of-Bounds Read via unshield_get_file_table
Attackers can cause crashes or read sensitive memory by supplying crafted InstallShield cabinet files to the unshield library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-110716?
CVE-2026-110716 is a medium-severity memory corruption vulnerability in twogood unshield, published on 14 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-110716?
How do I fix CVE-2026-110716?
No fix has been published for CVE-2026-110716 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-110716 being exploited?
There is no known exploitation of CVE-2026-110716 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-110716, GHSA-vcw2-wv74-jx7g, UBUNTU-CVE-2026-110716.