CVE-2025-25249: Fortinet FortiSwitchManager · Execute unauthorized code or commands
Affects Fortinet FortiSwitchManagerSource CVE Database V5
Exploited in the wild · KEV due 12 Sep 2026 · 3% EPSS : apply the vendor's fix or mitigations to Fortinet FortiSwitchManager now.
Data as of 26 Oct 2026, 06:26 UTC
- KEV deadline
- US federal agencies must patch by this date; a sensible deadline for everyone else.
- EPSS
- 3.7% chance of exploitation in 30 days – higher than 89% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:CExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 13 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 239 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by fortinet
, 342 days before disclosure
CVE published
on cve.org
, t = 0
In Threat Radar
record ingested
, 24 minutes after disclosure
Added to CISA KEV (opens in a new tab)
exploitation confirmed
, 239 days after disclosure
KEV remediation due
US federal deadline
, 242 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- fortiguard.fortinet.com/psirt/FG-IR-25-084 (opens in a new tab)
- cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk (opens in a new tab)
- cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2025-25249 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| FortinetFortiSwitchManager | Affected
| Fixed in– |
| FortinetFortiOS | Affected
| Fixed in– |
CPE configurations (4)
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.5:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiswitchmanager:7.2.4:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiswitchmanager:7.2.3:*:*:*:*:*:*:*cpe:2.3:a:fortinet:fortiswitchmanager:7.2.2:*:*:*:*:*:*:*
Check the firmware or software version for Fortinet FortiSwitchManager in the device's admin interface against the vendor advisory.
Description
CVE-2025-25249 is a heap-based buffer overflow vulnerability affecting multiple versions of Fortinet FortiSwitchManager and FortiOS. This flaw allows an attacker to execute unauthorized code or commands by sending specially crafted packets. The vulnerability impacts FortiSwitchManager versions 7.2.0 through 7.2.6 and FortiOS versions 6.4 (all versions), 7.0.0 through 7.0.17, 7.2.0 through 7.2.11, 7.4.0 through 7.4.8, and 7.6.0 through 7.6.3. The CVSS v3.1 base score is 7.4, indicating a high severity. Known exploits exist in the wild. Currently, only workarounds are available as remediation, with no official patch released yet.
References
- fortiguard.fortinet.com/psirt/FG-IR-25-084 (opens in a new tab)
- socradar.io/blog/cve-2025-25249-pivotc2-fortigate-rat/ (opens in a new tab)
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-25249 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-864900.html (opens in a new tab)