What is CVE-2025-70327?

CVE-2025-70327 is a critical-severity vulnerability in Totolink X5000r, classified under Argument Injection. CVSS score: 9.8/10. Published 2026-02-23.

How severe is CVE-2025-70327?

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

Resource exhaustion in Totolink X5000r

CVE-2025-70327

TOTOLINK X5000R v9.1.0cu_2415_B20250515 contains an argument injection vulnerability in the setDiagnosisCfg handler of the /usr/sbin/lighttpd executable. The ip parameter is retrieved via websGetVar and passed to a ping command through Cst…

EPSS: 0.007 (48.3th percentile) — read the EPSS interpretation.

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.

Affected products

Totolink X5000r
Totolink X5000r_firmware — versions 9.1.0cu.2415_b20250515
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-70327?: CVE-2025-70327 is a critical-severity vulnerability in Totolink X5000r, classified under Argument Injection. CVSS score: 9.8/10. Published 2026-02-23.
How severe is CVE-2025-70327?: Critical severity. CVSS v3 base score is 9.8 out of 10.