CVE-2021-42756
Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 35.0%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 34.98% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- fortinet/fortiweb
- Source
- psirt@fortinet.com
References
- https://fortiguard.com/psirt/FG-IR-21-186Vendor Advisory
- https://fortiguard.com/psirt/FG-IR-21-186Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.