CVE-2026-121640WatchGuard AuthPoint Gateway Capture-replay Allows Unauthorized Administrative Actions

An Authentication Bypass by Capture-replay vulnerability in WatchGuard AuthPoint Gateway allows an attacker who has observed a legitimate request between AuthPoint Gateway components to replay it and perform unauthorized administrative actions, including disrupting authentication services.

9.1 CRITICALEPSS 0.46%Not in KEVNVD: Deferred

Last updated: 2026-11-06 21:15 UTC

OverviewCVSS details

9.1CRITICALCVSS 4.0

Score source: WatchGuard (CNA)
NVD status: Deferred
Published: Nov 4, 2026
Assigner: WatchGuard

Affected

AuthPoint Authentication Gateway (WatchGuard)

Versions: 1.0 before 7.6.0
Fixed in: 7.6.0

Exploitation

Public exploit: None listed
CISA KEV: Not listed
KEV due date: —
SSVC: Exploitation none · Automatable no · Impact partial

EPSS · FIRST, scored Nov 7

0.46%chance of exploitation in 30 days

Higher than 40.80% of CVEs

CVSS 4.0 · WatchGuard (CNA)

9.1Critical

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H

Attack vector: Network
Attack complexity: Low
Attack requirements: Present
Privileges required: None
User interaction: None
Confidentiality impact: None
Integrity impact: High
Availability impact: High
Confidentiality (other systems): None
Integrity (other systems): High
Availability (other systems): High

NVD status: Deferred

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
9.1	CRITICAL	4.0WatchGuard (CNA)	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H

Details

CVE ID: CVE-2026-121640
Status: Deferred
Assigner (CNA): WatchGuard
Published: Nov 4, 2026
Last modified: 2026-11-06 21:15 UTC
Weaknesses: CWE-294

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 10:44 UTC.