What is CVE-2025-23412?

CVE-2025-23412 is a high-severity vulnerability in F5 Big-Ip, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-02-05.

How severe is CVE-2025-23412?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in F5 Big-Ip

CVE-2025-23412

When BIG-IP APM Access Profile is configured on a virtual server, undisclosed request can cause TMM to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Vulnerability class: Buffer Overflow

Published 2025-02-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

F5 Big-Ip — versions 17.1.0, 16.1.3, 15.1.0
F5 Big-Ip Access Policy Manager

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

my.f5.com/manage/s/article/K000141003 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-23412?: CVE-2025-23412 is a high-severity vulnerability in F5 Big-Ip, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-02-05.
How severe is CVE-2025-23412?: High severity. CVSS v3 base score is 7.5 out of 10.