WatchGuard Agent Incorrect Permission Assignment in Log Directory Allows Local Log Tampering

published 2026-10-22 18 d ago modified 2026-10-23 17 d ago also EUVD-2026-108074

cvss: 7.3; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

WatchGuard WatchGuard Agent 1.25.14.0000

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 18 d ago (2026-10-22)

Exploit prediction

0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.3	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
CNA	4.0	7.3	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/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

Affected products

WatchGuard WatchGuard Agent

Classification

Weakness

CWE-276 Incorrect Default Permissions
CWE-732 Incorrect Permission Assignment for Critical Resource

References

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

Sources

CVE List CVE-2026-115253
NVD CVE-2026-115253

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary