Vulnerability · Published Oct 22, 2026 · Assigned by WatchGuard

CVE-2026-115253WatchGuard Agent Incorrect Permission Assignment in Log Directory Allows Local Log Tampering

High 7.3

In plain English

A high-severity incorrect default permissions in WatchGuard Agent from WatchGuard. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 4.0)7.3High

Exploit odds (30 days)0.1%top 97.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An incorrect permission assignment vulnerability in the WatchGuard Agent's log directory allows a local, authenticated non-administrative user to create, modify, append to, or delete the agent's log files and write other files into the directory. This allows an attacker to tamper with or destroy the agent's security logs and stage further local attacks by placing executable content in a directory owned by a privileged service.

Affected products (as reported)

Vendor	Product	Versions
WatchGuard	WatchGuard Agent	0 – before 1.25.14.0000

Weakness: CWE-276, CWE-732 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://psirt.watchguard.com/CVE-2026-115253 vendor-advisory