CVE-2026-126243
CVE-2026-126243 key facts
- CISA KEV
- Not listed (catalogue checked )
- Highest advisory rating
- High
- Vendor advisories
- 1 from Fortinet
- Listed by VulniPulse
Ratings, versions and fixes are quoted from the vendor advisories that cover only CVE-2026-126243; each belongs to its advisory, not to every product listed. How records are collected and checked.
Vendor advisories for CVE-2026-126243
Fortinet
1 advisory- Advisory severityHigh7.4
High [CVE-2026-126242 +1] Incorrect authorization
FG-IR-26-257Source published Source updated
This bulletin covers 2 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
CVSSv3 Score: 7.4 An Incorrect Authorization vulnerability [CWE-863] in FortiAuthenticator may allow an attacker to bypass authentication and gain unauthorized access. Full impersonation however requires the attacker to obtain pre-required id and data via other means. Revised on 2026-11-10 00:00:00
- Affected products in this advisory
- FortiAuthenticator
- Source-reported affected versions
- FortiAuthenticator: 6.6.0 through 8.0.3 (vendor-listed versions)
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
References
More Fortinet advisories
CVE-2026-126257Nov 10, 2026Authentication bypassCVE-2026-126248Nov 10, 2026Insufficiently protected credentialsCVE-2026-126238Nov 10, 2026FortiAuthenticator improper access controlCVE-2026-126250Nov 10, 2026FortiAuthenticator improper access controlCVE-2026-126251Nov 10, 2026FortiAuthenticator improper access controlCVE-2026-126249Nov 10, 2026FortiAuthenticator privilege escalation
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