RCE in Utt 520
CVE-2026-2847
A vulnerability was detected in UTT HiPER 520 1.7.7-160105. Affected is the function sub_44EFB4 of the file /goform/formReleaseConnect of the component Web Management Interface. The manipulation of the argument Isp_Name results in os command injection. The attack can be launched remotely. The exploit is now public and may be used.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.075 (94.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.092 · newest: 0.075 · change: -0.017
Affected products
- Utt 520 — versions 3.0
- Utt 520 Firmware — versions 1.7.7-160105
- Utt Hiper 520 — versions 1.7.7-160105
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/cha0yang1/UTT520CVE/blob/main/UTTRCE2.md (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-2847?
- CVE-2026-2847 is a high-severity vulnerability in Utt 520, classified under Command Injection. CVSS score: 7.2/10. Published 2026-02-20.
- How severe is CVE-2026-2847?
- High severity. CVSS v3 base score is 7.2 out of 10.