CVE-2024-21762
Fortinet — Fortinet FortiOS Out-of-Bound Write Vulnerability
Fortinet · CWE-787 — Out-of-bounds write · in CISA KEV since 2024-02-09
EVRS 89 of 100 Immediate
Out-of-Band / Urgent Remediation
Rank 160 of 2,960 tracked
Why it scores 89
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and associated with known ransomware campaigns.
- CISA KEVApplied
- RansomwareApplied
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
fortiproxy: update to 2.0.14 or later | fortiproxy: update to 7.0.15 or later | fortiproxy: update to 7.2.9 or later | fortiproxy: update to 7.4.3 or later | fortios: update to 6.0.18 or later | fortios: update to 6.2.16 or later
Affected versions
- fortiproxy
>= 1.0.0 < 2.0.14>= 7.0.0 < 7.0.15>= 7.2.0 < 7.2.9>= 7.4.0 < 7.4.3 - fortios
>= 6.0.0 < 6.0.18>= 6.2.0 < 6.2.16>= 6.4.0 < 6.4.15>= 7.0.0 < 7.0.14>= 7.2.0 < 7.2.7>= 7.4.0 < 7.4.3
Remediation
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 9.8 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.834 (99.68th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Known | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2024-02-16 · KEV since 2024 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | None known | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 9.6 (v3.1), assigned by fortinet. | Listed | ENISA EUVD |
Description
NVDA out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiOS 6.0 all versions, FortiProxy 7.4.0 through 7.4.2, FortiProxy 7.2.0 through 7.2.8, FortiProxy 7.0.0 through 7.0.14, FortiProxy 2.0.0 through 2.0.13, FortiProxy 01.02 all versions, FortiProxy 1.2 all versions, FortiProxy 01.01 all versions, FortiProxy 1.1 all versions, FortiProxy 01.00 all versions allows attacker to execute unauthorized code or commands via specifically crafted requests
What CISA says to do