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Vulnerabilities

Vulnerability · CVE-2025-5671

A vulnerability, which was classified as critical, was found in TOTOLINK N302R Plus up to 3.4.0-B20201028.

Published Jun 5, 2025 · catalog updated Jun 5, 2025 · Totolink N302R Plus

Check if you run it

No confirmed exploitation is on record for CVE-2025-5671. EPSS is 0.76%. Act only if a listed version of Totolink N302R Plus is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.76%
Remediation
Vendor / distro source
Affected products
vendor Totolink N302R Plus 3.4.0-B20201028

A vulnerability, which was classified as critical, was found in TOTOLINK N302R Plus up to 3.4.0-B20201028. Affected is an unknown function of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer overflow. It is possible to launch 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 N302R Plus 3.4.0-B202010283.4.0-B20201028

How to fix CVE-2025-5671

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-2025-5671. EPSS is 0.76%. Act only if a listed version of Totolink N302R Plus is installed.

Which versions are affected?

Compare what you have installed with Totolink N302R Plus 3.4.0-B20201028 3.4.0-B20201028. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.76%. 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. Jun 5, 2025 · EUVD

    Detected

    A vulnerability, which was classified as critical, was found in TOTOLINK N302R Plus up to 3.4.0-B20201028. Affected is an unknown function of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

  2. Jun 5, 2025 · EUVD

    Updated

    A vulnerability, which was classified as critical, was found in TOTOLINK N302R Plus up to 3.4.0-B20201028. Affected is an unknown function of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Sources

  • CVE.orgVulnerability recordCVE-2025-5671

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-5671

    30-day exploitation probability 0.8%

    first.org
  • EUVDVulnerability recordEUVD-2025-17013

    A vulnerability, which was classified as critical, was found in TOTOLINK N302R Plus up to 3.4.0-B20201028. Affected is an unknown function of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer over

    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.