CVE-2025-4730

CVE-2025-4730 is a high-severity vulnerability in Totolink A3002r Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Description

A vulnerability was found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. It has been rated as critical. Affected by this issue is some unknown functionality of the file /boafrm/formMapDel of the component HTTP POST Request Handler. The manipulation of the argument devicemac1 leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-4730?
A vulnerability was found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. It has been rated as critical. Affected by this issue is some unknown functionality of the file /boafrm/formMapDel of the component HTTP POST Request Handler. The manipulation of the argument devicemac1 leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-4730?
CVE-2025-4730 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-4730 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4730?
CVE-2025-4730 primarily affects Totolink A3002r Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-4730?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-4730 have an EU (EUVD) identifier?
Yes. CVE-2025-4730 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15381.
When was CVE-2025-4730 published?
CVE-2025-4730 was published on 2025-05-16 and last updated on 2026-06-17.

References

Affected products (2)

More vulnerabilities in Totolink A3002r Firmware

All CVEs affecting Totolink A3002r Firmware →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →