CVE-2026-112357 GFI KerioConnect KOFF < 10.0.9p2 Privilege Escalation

High 8.5 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-112357?

CVE-2026-112357 is a high-severity vulnerability in GFI KerioConnect, published on 28 Oct 2026.

Official description

GFI KerioConnect (Kerio Connect) Outlook Connector (Offline Edition), 'KOFF', before 10.0.9 Patch 2 contains a local privilege escalation vulnerability caused by weak installer permissions that leave the product directory writable by the built-in Users group. A local non-administrative attacker can replace the searchd.exe service binary used by the bundled KOFFIndexingService, which runs as LocalSystem, to execute arbitrary code with NT AUTHORITY\SYSTEM privileges upon the next service start or reboot.

Weakness: CWE-276

Which versions are affected by CVE-2026-112357?

How do I fix CVE-2026-112357?

No fix has been published for CVE-2026-112357 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-112357 being exploited?

There is no known exploitation of CVE-2026-112357 in the wild and no public exploit code.

Sources

Also known as GHSA-mcj5-656f-pmhr.

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