CVE-2024-21762A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy version…
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It affects Fortinet FortiProxy and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Feb 9, 2024; federal agencies had to remediate by Feb 16, 2024, and it is known to be used in ransomware. Treat that date as your deadline.
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Free account, 1 product
A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, 2.0.0 through 2.0.13, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7 allows attacker to execute unauthorized code or commands via specifically crafted requests
- CVSS
- 9.6 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:W/RC:C
- Weakness (CWE)
- CWE-787
- Known exploited
- Added to CISA KEV Feb 9, 2024; federal remediation due Feb 16, 2024; known ransomware useApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 83.43% (percentile 100)
- Assigned by
- fortinet
- NVD analysis
- Analyzed
- Record last updated
- Aug 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Fortinet FortiProxy fortinet:fortiproxy (from the name) | from 7.4.0 through 7.4.2; from 7.2.0 through 7.2.8; from 7.0.0 through 7.0.14; from 2.0.0 through 2.0.13; from 1.2.0 through 1.2.13; from 1.1.0 through 1.1.6; from 1.0.0 through 1.0.7 | CNA record |
Fortinet FortiOS fortinet:fortios (from the name) | from 7.4.0 through 7.4.2; from 7.2.0 through 7.2.6; from 7.0.0 through 7.0.13; from 6.4.0 through 6.4.14; from 6.2.0 through 6.2.15; from 6.0.0 through 6.0.17 | CNA record |
fortinet fortiproxy fortinet:fortiproxy | from 1.0.0 before 2.0.14 | CISA ADP |
fortinet fortios fortinet:fortios | from 6.0.0 before 6.2.16 | CISA ADP |
fortinet fortiproxy fortinet:fortiproxy | from 1.0.0 before 2.0.14; from 7.0.0 before 7.0.15; from 7.2.0 before 7.2.9; from 7.4.0 before 7.4.3 | NVD |
fortinet fortios fortinet:fortios | from 6.0.0 before 6.0.18; from 6.2.0 before 6.2.16; from 6.4.0 before 6.4.15; from 7.0.0 before 7.0.14; from 7.2.0 before 7.2.7; from 7.4.0 before 7.4.3 | NVD |
References
- https://fortiguard.com/psirt/FG-IR-24-015vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21762us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.