CVE-2026-13079: watchguard fireware
CVSS: 7.8v3.1HighModified
Published 02-07-2026Last modified 27-08-2026
Vulnerability summary
CVE-2026-13079 is a high (CVSS 7.8) vulnerability in watchguard fireware. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 02-07-2026PublishedVulnerability first disclosed.
- 27-08-2026Last modifiedVulnerability information updated.
Description
A local privilege escalation vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker to escalate their privileges to NT AUTHORITY\SYSTEM on the machine where the client is installed. This issue affects the Mobile VPN with SSL client for Windows up to and including 2026.2.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:LSourcesAll 2 agree
- NVDNIST7.3HighCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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
High 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
EPSS trend
Probability
0.14%
Chance of exploitation in the next 30 days
Percentile
3%
Versus all other CVEs
30-day change
0.00 pp
From 0.14% on 21-09-2026
21-09-202621-10-2026
EPSS score0.14%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Watchguard3 products
- fireware≥ 12.0.0, < 12.12.1 | ≥ 2025.1, < 2026.2.1 | ≥ 12.5, ≤ 12.5.18
- mobile_vpn_with_ssl< 2026.2.1
- mobile vpn with ssl client≥ 12.0, < 2026.2.1
1 vendor · 3 products
References
2 links- psirt.watchguard.com/CVE-2026-13079Vendor Advisory
- www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00027Vendor Advisory