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Vulnerabilities

Vulnerability · CVE-2025-4269

A vulnerability was found in TOTOLINK A720R 4.1.5cu.374 and classified as critical.

Published May 5, 2025 · catalog updated May 5, 2025 · Totolink A720R

Check if you run it

No confirmed exploitation is on record for CVE-2025-4269. EPSS is 0.59%. Act only if a listed version of Totolink A720R is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.59%
Remediation
Vendor / distro source
Affected products
vendor Totolink A720R 4.1.5cu.374

A vulnerability was found in TOTOLINK A720R 4.1.5cu.374 and classified as critical. This issue affects some unknown processing of the file /cgi-bin/cstecgi.cgi of the component Log Handler. The manipulation of the argument topicurl with the input clearDiagnosisLog/clearSyslog/clearTracerouteLog leads to improper access controls. The attack may be initiated 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 A720R 4.1.5cu.3744.1.5cu.374

How to fix CVE-2025-4269

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-2025-4269. EPSS is 0.59%. Act only if a listed version of Totolink A720R is installed.

Which versions are affected?

Compare what you have installed with Totolink A720R 4.1.5cu.374 4.1.5cu.374. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.59%. 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 5, 2025 · EUVD

    Detected

    A vulnerability was found in TOTOLINK A720R 4.1.5cu.374 and classified as critical. This issue affects some unknown processing of the file /cgi-bin/cstecgi.cgi of the component Log Handler. The manipulation of the argument topicurl with the input clearDiagnosisLog/clearSyslog/clearTracerouteLog leads to improper access controls. The attack may be initiated remotely. The exploit has been disclosed

  2. May 5, 2025 · EUVD

    Updated

    A vulnerability was found in TOTOLINK A720R 4.1.5cu.374 and classified as critical. This issue affects some unknown processing of the file /cgi-bin/cstecgi.cgi of the component Log Handler. The manipulation of the argument topicurl with the input clearDiagnosisLog/clearSyslog/clearTracerouteLog leads to improper access controls. The attack may be initiated remotely. The exploit has been disclosed

Sources

  • CVE.orgVulnerability recordCVE-2025-4269

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4269

    30-day exploitation probability 0.6%

    first.org
  • EUVDVulnerability recordEUVD-2025-14981

    A vulnerability was found in TOTOLINK A720R 4.1.5cu.374 and classified as critical. This issue affects some unknown processing of the file /cgi-bin/cstecgi.cgi of the component Log Handler. The manipulation of the argument topicurl with the input clearDiagnosisLog/clearSyslog/cle

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.