What is CVE-2023-52031?

CVE-2023-52031 is a critical-severity vulnerability in Totolink A3700r. CVSS score: 9.8/10. Published 2024-01-11.

How severe is CVE-2023-52031?

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

Is CVE-2023-52031 known to be exploited?

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

Vulnerability in Totolink A3700r

CVE-2023-52031

TOTOlink A3700R v9.1.2u.5822_B20200513 was discovered to contain a remote command execution (RCE) vulnerability via the UploadFirmwareFile function.

Published 2024-01-11 · 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: 0.015 (74.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Totolink A3700r
Totolink A3700r Firmware — versions 9.1.2u.5822_b20200513

Public proof-of-concept exploits

References

815yang.github.io/2023/12/04/a3700r/TOTOlink A3700R_UploadFirmwareFile/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-52031?: CVE-2023-52031 is a critical-severity vulnerability in Totolink A3700r. CVSS score: 9.8/10. Published 2024-01-11.
How severe is CVE-2023-52031?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-52031 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.