FortiOS
CVE-2024-52963: Out-of-bounds write in FortiProxy, FortiOS and others
A out-of-bounds write in Fortinet FortiOS versions 7.6.0, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.0 through 7.0.16, 6.4.0 through 6.4.15 allows attacker to trigger a denial of service via specially crafted packets.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityLOWCVSS 3.1 3.5
EPSS0.76%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiProxy 7.4.0 to 7.4.5 | Upgrade past 7.4.5; see the advisory |
| FortiProxy 7.2.0 to 7.2.13 | Upgrade past 7.2.13; see the advisory |
| FortiProxy 7.0.0 to 7.0.20 | Upgrade past 7.0.20; see the advisory |
| FortiProxy 2.0.0 to 2.0.14 | Upgrade past 2.0.14; see the advisory |
| FortiOS 7.6 | 7.6.1 or later |
| FortiOS 7.4.0 to 7.4.6 | Upgrade past 7.4.6; see the advisory |
| FortiOS 7.2.0 to 7.2.10 | Upgrade past 7.2.10; see the advisory |
| FortiOS 7.0.0 to 7.0.16 | Upgrade past 7.0.16; see the advisory |
| FortiOS 6.4.0 to 6.4.15 | Upgrade past 6.4.15; see the advisory |
| FortiPAM 1.4.0 to 1.4.2 | Upgrade past 1.4.2; see the advisory |
| FortiPAM 1.3.0 to 1.3.1 | Upgrade past 1.3.1; see the advisory |
| FortiPAM 1.2 | See the advisory |
| FortiPAM 1.1.0 to 1.1.2 | Upgrade past 1.1.2; see the advisory |
| FortiPAM 1.0.0 to 1.0.3 | Upgrade past 1.0.3; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A out-of-bounds write in Fortinet FortiOS versions 7.6.0, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.0 through 7.0.16, 6.4.0 through 6.4.15 allows attacker to trigger a denial of service via specially crafted packets.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.