What is CVE-2023-48800?

CVE-2023-48800 is a critical-severity vulnerability in Totolink X6000r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-12-04.

How severe is CVE-2023-48800?

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

RCE in Totolink X6000r

CVE-2023-48800

In TOTOLINK X6000R_Firmware V9.4.0cu.852_B20230719, the shttpd file sub_417338 function obtains fields from the front-end, connects them through the snprintf function, and passes them to the CsteSystem function, resulting in a command execution vulnerability.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-12-04 · 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 (74.1th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.1% 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 X6000r
Totolink X6000r Firmware — versions 9.4.0cu.852_b20230719

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.notion.so/X6000R-sub_417338-ad96548d06c645738daf3ab77575fd74 (Exploit, Third Party Advisory)
palm-jump-676.notion.site/CVE-2023-48800-ad96548d06c645738daf3ab77575fd74 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-48800?: CVE-2023-48800 is a critical-severity vulnerability in Totolink X6000r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-12-04.
How severe is CVE-2023-48800?: Critical severity. CVSS v3 base score is 9.8 out of 10.