Vulnerability · Published Dec 8, 2021 · Assigned by fortinet
CVE-2021-26109
High 8.1
In plain English
A high-severity security flaw in Fortinet FortiOS from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)1.9%top 20.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An integer overflow or wraparound vulnerability in the memory allocator of SSLVPN in FortiOS before 7.0.1 may allow an unauthenticated attacker to corrupt control data on the heap via specifically crafted requests to SSLVPN, resulting in potentially arbitrary code execution.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortinet FortiOS | FortiOS before 7.0.1 |
References
- https://fortiguard.com/advisory/FG-IR-21-049 x_refsource_CONFIRM