CVE-2024-33509: fortinet fortiweb Improper Certificate Validation
Vulnerability summary
CVE-2024-33509 is a medium (CVSS 4.8) Improper Certificate Validation vulnerability in fortinet fortiweb. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.1% of scored vulnerabilities.
Timeline
- 09-07-2024PublishedVulnerability first disclosed.
- 02-08-2024Last modifiedVulnerability information updated.
Description
An improper certificate validation vulnerability [CWE-295] in FortiWeb 7.2.0 through 7.2.1, 7.0 all versions, 6.4 all versions and 6.3 all versions may allow a remote and unauthenticated attacker in a Man-in-the-Middle position to decipher and/or tamper with the communication channel between the device and different endpoints used to fetch data for Web Application Firewall (WAF).
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA4.4MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:RDiffers
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
8%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.19% on 22-09-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fortinet1 product
- fortiweb≥ 7.2.0, ≤ 7.2.1 | ≥ 7.0.0, ≤ 7.0.10 | ≥ 6.4.0, ≤ 6.4.3 | ≥ 6.3.0, ≤ 6.3.23 | ≥ 6.3.0, < 7.2.2
1 vendor · 1 product
References
1 links- fortiguard.fortinet.com/psirt/FG-IR-22-326Vendor Advisory