FortiauthenticatorApplication · Fortinet
CVE-2026-44277
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA improper access control vulnerability in Fortinet FortiAuthenticator 8.0.2, FortiAuthenticator 8.0.0, FortiAuthenticator 6.6.0 through 6.6.8, FortiAuthenticator 6.5.0 through 6.5.6 may allow attacker to execute unauthorized code or commands via crafted requests.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceImproper access control vulnerability in FortiAuthenticator allows remote attackers to execute unauthorized code or commands via crafted HTTP requests. The vulnerability stems from missing or insufficient access control checks, enabling authenticated or unauthenticated attackers (depending on CVSS vector) to bypass authorization and inject malicious commands.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
FortiauthenticatorApplication
>= 6.4.0, <= 6.4.10>= 6.5.0, < 6.5.7>= 6.6.0, < 6.6.9>= 8.0.0, < 8.0.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Confirm FortiAuthenticator is deployedIdentify FortiAuthenticator instances in your environment by reviewing network inventory, asset lists, or by checking for FortiAuthenticator services on relevant serversAffected if FortiAuthenticator is present in the environment
-
Determine installed FortiAuthenticator versionAccess the FortiAuthenticator GUI and navigate to System > Settings > General or use the CLI command 'get system status' to retrieve the firmware versionAffected if The version falls within any of these ranges: 6.4.0 through 6.4.10, 6.5.0 through 6.5.6, 6.6.0 through 6.6.8, or 8.0.0 through 8.0.2
-
Check management interface exposureReview network firewall rules and access control lists to determine if the FortiAuthenticator management interface (typically ports HTTP/HTTPS) is accessible from untrusted networks or the internetAffected if The management interface is reachable from untrusted or external networks without VPN or IP restriction
-
Review HTTP access logs for suspicious requestsExamine FortiAuthenticator HTTP access logs or web server logs for unusual or unauthorized API calls, especially to administrative endpoints, that may indicate exploitation attemptsAffected if Logs show unexpected POST requests to administrative endpoints or commands not initiated by authorized administrators
You are affected if FortiAuthenticator is running a version within 6.4.0-6.4.10, 6.5.0-6.5.6, 6.6.0-6.6.8, or 8.0.0-8.0.2 AND the management interface is exposed to untrusted networks.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped6.5.76.6.98.0.3
Apply vendor-supplied patches for FortiAuthenticator versions 6.5.x, 6.6.x, 8.0.0, and 8.0.2 as specified in Fortinet advisory; restrict management interface access to trusted networks via firewall rules until patch deployment.
Upgrade to FortiAuthenticator 6.4.11+ (if on 6.4.x), 6.5.7+ (if on 6.5.x), 6.6.9+ (if on 6.6.x), or 8.0.3+ (if on 8.0.x)
- 1. Identify the current FortiAuthenticator version by navigating to System > Settings > General in the FortiAuthenticator GUI or running 'get system status' in the CLI
- 2. Determine which version branch is currently running (6.4.x, 6.5.x, 6.6.x, or 8.0.x)
- 3. For FortiAuthenticator 6.4.x: Upgrade to version 6.4.11 or later
- 4. For FortiAuthenticator 6.5.x: Upgrade to version 6.5.7 or later
- 5. For FortiAuthenticator 6.6.x: Upgrade to version 6.6.9 or later
- 6. For FortiAuthenticator 8.0.x: Upgrade to version 8.0.3 or later
- 7. Download the appropriate firmware from Fortinet's support portal (support.fortinet.com)
- 8. Back up the FortiAuthenticator configuration before upgrading
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Fortiauthenticator
Scoped from the published advisory
- Consultation4.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,440.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-44277 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-44277 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data