CVE-2026-110716

unshield through 1.6.2 Heap Out-of-Bounds Read via unshield_get_file_table

6.8 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.17%Unchanged since Oct 15, 2026

What each source reports

CVE List Score used 6.8

unshield through 1.6.2 Heap Out-of-Bounds Read via unshield_get_file_table

Record: CVE-2026-110716
CVSS 4.0: 6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

EUVDEUVD-2026-101139 6.8

Record: EUVD-2026-101139
CVSS 4.0: 6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-vcw2-wv74-jx7g 6.8

unshield through 1.6.2 contains a heap out-of-bounds read vulnerability in...

Record: GHSA-vcw2-wv74-jx7g
CVSS 4.0: 6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

NVD 6.8

Record: CVE-2026-110716
CVSS 4.0: 6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

OSV 6.8

unshield through 1.6.2 Heap Out-of-Bounds Read via unshield_get_file_table

Record: CVE-2026-110716
CVSS 4.0: 6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness: CWE-125
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-110716 5.5

Record: DEBIAN-CVE-2026-110716
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-110716 6.8

Record: UBUNTU-CVE-2026-110716
CVSS 4.0: 6.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

twogood unshield

Affected packages

Affected packages
Package	Affected	Fixed
`unshield` Debian:12	All versions, plus listed versions 1.4.2-11.5.1-11.5.1-21.6.2-11.6.2-2	None known
`unshield` Debian:13	All versions, plus listed versions 1.5.1-11.5.1-21.6.2-11.6.2-2	None known
`unshield` Debian:14	All versions, plus listed versions 1.5.1-11.5.1-21.6.2-11.6.2-2	None known
`unshield` Ubuntu:16.04:LTS	All versions, plus listed versions 1.0-1	None known
`unshield` Ubuntu:18.04:LTS	All versions, plus listed versions 1.4.2-1	None known
`unshield` Ubuntu:20.04:LTS	All versions, plus listed versions 1.4.2-1	None known
`unshield` Ubuntu:22.04:LTS	All versions, plus listed versions 1.4.2-1	None known
`unshield` Ubuntu:24.04:LTS	All versions, plus listed versions 1.4.2-11.5.1-1	None known
`unshield` Ubuntu:26.10	All versions, plus listed versions 1.6.2-2	None known
`unshield` Ubuntu:26.04:LTS	All versions, plus listed versions 1.5.1-21.6.2-2	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-110716 is a medium vulnerability (CVSS 6.8) in Twogood Unshield, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.

References

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