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CVE-2026-3344

19
FAUCET Score

CVE-2026-3344 describes a vulnerability in WatchGuard Fireware OS that permits an attacker to bypass filesystem integrity checks during firmware updates, potentially achieving limited persistence. This medium-severity flaw (CVSS 4.9) impacts various Fireware OS versions, including 12.0 through 12.11.7, 12.5.9 through 12.5.16, and 2025.1 through 2026.1.1. Exploitation requires high privileges (PR:H) but has low attack complexity (AC:L), leading to high integrity impact (I:H) without affecting confidentiality or availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 12.0, < 12.11.8CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
>= 12.5.9, < 12.5.17CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
>= 2025.1, < 2026.1.2CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

6.9MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 8th percentile among its peer group of 3,566 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

watchguard.com / wgrd-psirt/advisory/wgsa-2026-00005
Vendor Advisory