What is CVE-2023-31756?

CVE-2023-31756 is a medium-severity vulnerability in TP-Link Archer Vr1600v, classified under OS Command Injection. CVSS score: 6.7/10. Published 2023-05-19.

How severe is CVE-2023-31756?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Is CVE-2023-31756 known to be exploited?

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

RCE in TP-Link Archer Vr1600v

CVE-2023-31756

A command injection vulnerability exists in the administrative web portal in TP-Link Archer VR1600V devices running firmware Versions <= 0.1.0. 0.9.1 v5006.0 Build 220518 Rel.32480n which allows remote attackers, authenticated to the administrative web portal as an administrator user to open an operating system level shell via the 'X_TP_IfName' parameter.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-05-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.2th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% 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: 0.018 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

stanleyjobsonau.github.io/tp-link-advisory.html (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-31756?: CVE-2023-31756 is a medium-severity vulnerability in TP-Link Archer Vr1600v, classified under OS Command Injection. CVSS score: 6.7/10. Published 2023-05-19.
How severe is CVE-2023-31756?: Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2023-31756 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.