CVE-2025-24477: fortinet fortios Heap-based Buffer Overflow
CVSS: 6.7v3.1MediumModified
Published 15-07-2025Last modified 10-02-2026
Vulnerability summary
CVE-2025-24477 is a medium (CVSS 6.7) Heap-based Buffer Overflow vulnerability in fortinet fortios. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.3% of scored vulnerabilities.
CVSS score
6.7/10
010
Medium · v3.1 (NVD)EPSS score
0.24%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 15-07-2025PublishedVulnerability first disclosed.
- 10-02-2026Last modifiedVulnerability information updated.
Description
A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.7, FortiOS 7.2.4 through 7.2.12 allows an attacker to escalate its privileges via a specially crafted CLI command
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.7Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSources2 sources · 4.0–6.7
- CVE.orgCNA4.0MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:CDiffers
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
+0.03 pp
From 0.21% on 21-09-2026
21-09-202621-10-2026
EPSS score0.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fortinet1 product
- fortios≥ 7.6.0, ≤ 7.6.2 | ≥ 7.4.0, ≤ 7.4.7 | ≥ 7.2.4, ≤ 7.2.12 | ≥ 7.2.4, < 7.2.12 | ≥ 7.4.0, < 7.4.8 | ≥ 7.6.0, < 7.6.3
1 vendor · 1 product
References
1 links- fortiguard.fortinet.com/psirt/FG-IR-25-026Vendor Advisory