Is CVE-2026-4315 actively exploited?

No active exploitation of CVE-2026-4315 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4315 be exploited remotely?

Yes. CVE-2026-4315 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-4315?

CVE-2026-4315 has a CVSS score of 7.1 (HIGH).

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HIGH

CVE-2026-4315

CWE-352Published: March 30, 2026· Updated: Mar 30, 2026

7.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.7th

Official Description

A Cross-Site Request Forgery (CSRF) vulnerability in the WatchGuard Fireware OS WebUI could allow a remote attacker to trigger a denial-of-service (DoS) condition in the Fireware Web UI by convincing an authenticated administrator into visiting a malicious web page.This issue affects Fireware OS: 11.8 through 11.12.4+541730, 12.0 through 12.11.8, and 2025.1 through 2026.1.2.

NVD Source

Technical Analysis

CVE-2026-4315 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (P) is needed, which slightly reduces the risk of mass automated attacks.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionP

ScopeX

Impact

Confidentiality

Integrity

Availability

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