CVE-2026-40631

Name: CVE-2026-40631
Creator: NVD / NIST
Published: 2026-05-13T16:16:43.417+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.5/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2026-40631 is a high-severity vulnerability rated 8.5/10 on the CVSS scale. An authenticated attacker with the Resource Administrator or Administrator role can modify configuration objects through iControl SOAP resulting in privilege escalation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

An authenticated attacker with the Resource Administrator or Administrator role can modify configuration objects through iControl SOAP resulting in privilege escalation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Metrics

CVSS 3.1

8.7/10

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

CVSS 4.0

8.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.25%

16.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-552

References

https://my.f5.com/manage/s/article/K000160979

Timeline

Published: May 13, 2026
Last Modified: Jun 17, 2026
Status: Undergoing Analysis

Frequently Asked Questions

What is CVE-2026-40631?

How severe is CVE-2026-40631?

CVE-2026-40631 has a CVSS score of 8.5/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2026-40631?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40631?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST