What is CVE-2022-26835?

CVE-2022-26835 is a medium-severity vulnerability in F5 Big-Ip, classified under Path Traversal. CVSS score: 4.9/10. Published 2022-05-05.

How severe is CVE-2022-26835?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Is CVE-2022-26835 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in F5 Big-Ip

CVE-2022-26835

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all versions of 12.1.x and 11.6.x, directory traversal vulnerabilities exist in undisclosed iControl REST endpoints and TMOS Shell (tmsh) commands in F5 BIG-IP Guided Configuration, which may allow an authenticated attacker with at least resource administrator role privileges to read arbitrary files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Vulnerability class: Path Traversal (Directory Traversal)

Published 2022-05-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.019 (78.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.019 · change: +0.001

Affected products

F5 Big-Ip — versions 12.1.x, 11.6.x, 17.0.0
F5 Big-Ip Access Policy Manager — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Advanced Firewall Manager — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Analytics — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Application Acceleration Manager — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Application Security Manager — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Domain Name System — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Fraud Protection Service — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Global Traffic Manager — versions 11.6.1, 11.6.2, 11.6.3
F5 Big-Ip Link Controller — versions 11.6.1, 11.6.2, 11.6.3

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

karimhabush/cyberowl

References

support.f5.com/csp/article/K53197140 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-26835?: CVE-2022-26835 is a medium-severity vulnerability in F5 Big-Ip, classified under Path Traversal. CVSS score: 4.9/10. Published 2022-05-05.
How severe is CVE-2022-26835?: Medium severity. CVSS v3 base score is 4.9 out of 10.
Is CVE-2022-26835 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.