CVE-2025-25249

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-09-09. Federal remediation due 2026-09-12.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

3.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 89.7% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-07.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-01-13 16:32Z9 MO AGO

Last updated

2026-10-15 01:05Z14 DAYS AGO

Reserved

2025-02-05

Assigning CNA

fortinet

Record state

PUBLISHED

Severity

High (CVSS 7.4)

CNA CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant

Data version

5.2

Document digest

83df40873e141f6f1bc8062ff54677e12b17013b2696cce844505199713f9044

• fortiguard.fortinet.comhttps://fortiguard.fortinet.com/psirt/FG-IR-25-084
• socradar.iohttps://socradar.io/blog/cve-2025-25249-pivotc2-fortigate-rat/third-party-advisory
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-25249government-resource
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-864900.html