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Vulnerabilities

Vulnerability · CVE-2025-4731

A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615.

Published May 16, 2025 · catalog updated May 16, 2025 · Totolink A3002R

Check this week

CVE-2025-4731 is not in CISA KEV. FIRST estimates a 85.00% chance of exploitation in the next 30 days. Check whether you run Totolink A3002R.

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
85.00%
Remediation
Vendor / distro source
Affected products
vendor Totolink A3002R 3.0.0-B20230809.1615

A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type/ip_subnet leads to buffer overflow. 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 A3002R 3.0.0-B20230809.16153.0.0-B20230809.1615

How to fix CVE-2025-4731

What to do

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

Should you patch?

CVE-2025-4731 is not in CISA KEV. FIRST estimates a 85.00% chance of exploitation in the next 30 days. Check whether you run Totolink A3002R.

Which versions are affected?

Compare what you have installed with Totolink A3002R 3.0.0-B20230809.1615 3.0.0-B20230809.1615. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 85.00%. 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 16, 2025 · EUVD

    Detected

    A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type/ip_subnet leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be use

  2. May 16, 2025 · EUVD

    Updated

    A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type/ip_subnet leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be use

Sources

  • CVE.orgVulnerability recordCVE-2025-4731

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-15380

    A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type/ip_subnet leads to buff

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog May 16, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.