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CVE-2026-40698

35
FAUCET Score

A vulnerability exists in BIG-IP and BIG-IQ systems where a highly privileged, authenticated attacker with at least the Resource Administrator role can create SNMP configuration objects through iControl REST or the TMOS shell (tmsh) resulting in privilege escalation.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

First published: May 13, 2026Last modified: May 13, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 17.1.0, <= 17.1.3CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
>= 17.5.0, <= 17.5.1CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
>= 17.1.0, <= 17.1.3CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
>= 17.5.0, <= 17.5.1CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
>= 17.1.0, <= 17.1.3CPE matchmatch criteria
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
14.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 1st percentile among its peer group of 5,537 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

my.f5.com / manage/s/article/K000160981
MitigationVendor Advisory