WatchGuard AuthPoint Gateway Improper Authentication Allows Unauthenticated Denial of Service
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 7.6.0
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 7.6.0.
- Exploitation0/40No signal
- Exposure20/25No login or user action needed, CISA rates it automatable · Data gap: Advisories don't say whether default setups are affected
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity9.2/10CVSS 9.2
- No patch0/5No signal
What would change the score
- Would score about 74 if added to CISA KEV
- Would score about 69 if CISA's SSVC rates exploitation active
- Would score about 34 if advisories confirm default setups are exposed
CVE-2026-121639 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 9.2 (critical) and affects AuthPoint Authentication Gateway; fixed in 7.6.0.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 29/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Fix
- Fixed in 7.6.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
The WatchGuard AuthPoint Gateway has a missing authentication flaw that lets a remote attacker on the network reach the gateway host without logging in. The attacker can disrupt its authentication services and delete the local directory synchronization configuration.
Read the original description
A Missing Authentication for Critical Function vulnerability in WatchGuard AuthPoint Gateway allows a remote unauthenticated attacker with network access to the AuthPoint Gateway host to disrupt authentication services and delete the local directory synchronization configuration.
What to do
Upgrade to a fixed version: 7.6.0.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- WatchGuard AuthPoint Authentication Gateway
From 1.0 · fixed in 7.6.0
Evidence 1
- Advisory
Corrections
None so far.
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Questions about CVE-2026-121639
Is CVE-2026-121639 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What does this mean?
An authentication check in the AuthPoint Gateway can be bypassed without logging in, letting an unauthenticated attacker disrupt authentication services and delete the local directory synchronization configuration on the gateway host.Source: psirt.watchguard.com
Which versions are affected by CVE-2026-121639?
AuthPoint Authentication Gateway: from 1.0 before 7.6.0.Source: cve.now feed data
Am I affected, and how do I check?
Deployments of AuthPoint Authentication Gateway from 1.0 up to but not including 7.6.0 that are configured with an LDAP or Active Directory provider. Check the installed gateway version and whether an LDAP or Active Directory provider is configured in the gateway settings.Source: psirt.watchguard.com
How do I fix CVE-2026-121639?
Upgrade AuthPoint Authentication Gateway to version 7.6.0 or later, which contains the fix.Source: psirt.watchguard.com