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Vulnerabilities

Vulnerability · CVE-2025-4850

A vulnerability classified as critical has been found in TOTOLINK N300RH 6.1c.1390_B20191101.

Published May 18, 2025 · catalog updated May 19, 2025 · Totolink N300RH

Check if you run it

No confirmed exploitation is on record for CVE-2025-4850. EPSS is 1.22%. Act only if a listed version of Totolink N300RH is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.22%
Remediation
Vendor / distro source
Affected products
vendor Totolink N300RH 6.1c.1390_B20191101

A vulnerability classified as critical has been found in TOTOLINK N300RH 6.1c.1390_B20191101. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Totolink N300RH 6.1c.1390_B201911016.1c.1390_B20191101

How to fix CVE-2025-4850

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-4850. EPSS is 1.22%. Act only if a listed version of Totolink N300RH is installed.

Which versions are affected?

Compare what you have installed with Totolink N300RH 6.1c.1390_B20191101 6.1c.1390_B20191101. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 18, 2025 · EUVD

    Detected

    A vulnerability classified as critical has been found in TOTOLINK N300RH 6.1c.1390_B20191101. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

  2. May 19, 2025 · EUVD

    Updated

    A vulnerability classified as critical has been found in TOTOLINK N300RH 6.1c.1390_B20191101. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Sources

  • CVE.orgVulnerability recordCVE-2025-4850

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-15698

    A vulnerability classified as critical has been found in TOTOLINK N300RH 6.1c.1390_B20191101. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name leads to command injection. It is possible to initiate the atta

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog May 19, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.