What is CVE-2025-44840?

CVE-2025-44840 is a medium-severity vulnerability in Totolink Ca600-Poe, classified under Command Injection. CVSS score: 6.5/10. Published 2025-05-01.

How severe is CVE-2025-44840?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-44840 known to be exploited?

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

RCE in Totolink Ca600-Poe

CVE-2025-44840

TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the CloudSrvUserdataVersionCheck function via the svn parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.008 (54.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Totolink Ca600-poe
Totolink Ca600-poe_firmware — versions 5.3c.6665_b20180820*
N/a — versions n/a

Weakness classification (CWE)

CWE-77 — Command Injection

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

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

Frequently asked questions

What is CVE-2025-44840?: CVE-2025-44840 is a medium-severity vulnerability in Totolink Ca600-Poe, classified under Command Injection. CVSS score: 6.5/10. Published 2025-05-01.
How severe is CVE-2025-44840?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-44840 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.