CVE-2021-36194: fortinet fortinet fortiweb Out-of-bounds Write
CVSS: 8.8v3.1HighModified
Published 09-12-2021Last modified 25-10-2024
Vulnerability summary
CVE-2021-36194 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in fortinet fortinet fortiweb. EPSS estimates a 1.44% chance of exploitation in the next 30 days, higher than 72.8% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
1.44%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-12-2021PublishedVulnerability first disclosed.
- 25-10-2024Last modifiedVulnerability information updated.
Description
Multiple stack-based buffer overflows in the API controllers of FortiWeb 6.4.1, 6.4.0, and 6.3.0 through 6.3.15 may allow an authenticated attacker to achieve arbitrary code execution via specially crafted requests.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:CSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.44%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
+0.05 pp
From 1.40% on 19-09-2026
19-09-202619-10-2026
EPSS score1.44%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fortinet2 products
- fortinet fortiwebFortiWeb 6.4.1, 6.4.0, and 6.3.0 through 6.3.15
- fortiweb≥ 6.3.0, ≤ 6.3.15 | 6.4.0 | 6.4.1
1 vendor · 2 products