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Vulnerabilities

Vulnerability · CVE-2025-4835

A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615.

Published May 17, 2025 · catalog updated May 19, 2025 · Totolink A702R

Check this week

CVE-2025-4835 is not in CISA KEV. FIRST estimates a 85.00% chance of exploitation in the next 30 days. Check whether you run Totolink A702R.

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 A702R 3.0.0-B20230809.1615

A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formWlanRedirect of the component HTTP POST Request Handler. The manipulation of the argument redirect-url leads to buffer overflow. The attack can be launched 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 A702R 3.0.0-B20230809.16153.0.0-B20230809.1615

How to fix CVE-2025-4835

What to do

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

Should you patch?

CVE-2025-4835 is not in CISA KEV. FIRST estimates a 85.00% chance of exploitation in the next 30 days. Check whether you run Totolink A702R.

Which versions are affected?

Compare what you have installed with Totolink A702R 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 17, 2025 · EUVD

    Detected

    A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formWlanRedirect of the component HTTP POST Request Handler. The manipulation of the argument redirect-url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed

  2. May 19, 2025 · EUVD

    Updated

    A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formWlanRedirect of the component HTTP POST Request Handler. The manipulation of the argument redirect-url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed

Sources

  • CVE.orgVulnerability recordCVE-2025-4835

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-15597

    A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formWlanRedirect of the component HTTP POST Request Handler. The manipulation of

    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.