CVE-2025-58413

Adjacent code execution via crafted CAPWAP packets

Published Nov 18, 2025 · Updated Aug 11, 2026

Stack overflow in the CAPWAP daemon in Fortinet FortiOS and FortiSASE allows adjacent remote attackers to execute arbitrary code. The daemon writes beyond a stack buffer while processing specially crafted CAPWAP packets; Fortinet has not disclosed the vulnerable function or packet field. By default, exploitation requires control of an authorized FortiAP on the same IP subnet and successful defeat of stack protection and ASLR.

CVSS severity7.5
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in the CAPWAP daemon in Fortinet FortiOS and FortiSASE allows adjacent remote attackers to execute arbitrary code. The daemon writes beyond a stack buffer while processing specially crafted CAPWAP packets; Fortinet has not disclosed the vulnerable function or packet field. By default, exploitation requires control of an authorized FortiAP on the same IP subnet and successful defeat of stack protection and ASLR.

The record

CVE
CVE-2025-58413
Published
Nov 18, 2025
Updated
Aug 11, 2026
Vendor
Fortinet
Product
FortiSASE
Classifications
CWE-787, CWE-121, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=25.3.b

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Fortinet · FortiSASEversion=25.3.b
Siemens · RUGGEDCOM APE1808version=0 <*
Fortinet · FortiOSversion=6.0.0 <=6.0.18; version=6.2.0 <=6.2.17; version=6.4.0 <=6.4.16; version=7.0.0 <=7.0.18; version=7.2.0 <=7.2.12; version=7.4.0 <=7.4.8; version=7.6.0 <=7.6.3

Published CVSS scores

7.5Siemens ProductCERTCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.9FortinetCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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