CVE-2026-260358.8HighCWE-287
CVE-2026-26035: Fortinet FortiWeb vulnerability
Fortinet · FortiWeb
Vendor fix available · Affected: Fortinet FortiWeb · Exploitation: not established
ExploitationNot established
Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not establishedNothing in the sources we check
0.8%probability of exploitation in the next 30 days
55th percentile
050100
Higher than 55% of scored CVEs
8.8HighCVSS 3.1
LowMediumHighCrit.
DescriptionNVD
An Improper Authentication vulnerability [CWE-287] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11, FortiWeb 7.2.0 through 7.2.12, FortiWeb 7.0.0 through 7.0.12 may allow a remote unauthenticated attacker to login into the Fortiweb GUI/CLI with a random username and password
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Fortinet
- Published
- August 2026
Coverage1 article · 1 outlet
First in our coverage: SecurityWeek, 13 Aug.
- Fortinet patches CVE-2026-26035 auth bypass in FortiWebSecurityWeek · first in our coverage
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