What is CVE-2026-31059?

CVE-2026-31059 is a critical-severity vulnerability in Utt 520w, classified under Command Injection. CVSS score: 9.8/10. Published 2026-04-06.

How severe is CVE-2026-31059?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Utt 520w

CVE-2026-31059

A remote command execution (RCE) vulnerability in the /goform/formDia component of UTT Aggressive HiPER 520W v3v1.7.7-180627 allows attackers to execute arbitrary commands via a crafted string.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-04-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.011 · change: +0.002

Affected products

Utt 520w — versions 3.0
Utt 520w Firmware — versions 1.7.7-180627

Weakness classification (CWE)

CWE-77 — Command Injection

References

github.com/zxq0408/Vul202601/blob/main/9.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-31059?: CVE-2026-31059 is a critical-severity vulnerability in Utt 520w, classified under Command Injection. CVSS score: 9.8/10. Published 2026-04-06.
How severe is CVE-2026-31059?: Critical severity. CVSS v3 base score is 9.8 out of 10.