How severe is CVE-2025-55586?

CVE-2025-55586 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-55586 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55586?

CVE-2025-55586 affects Totolink A3002r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55586?

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-2025-55586 have an EU (EUVD) identifier?

Yes. CVE-2025-55586 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28596.

When was CVE-2025-55586 published?

CVE-2025-55586 was published on 2025-08-18 and last updated on 2026-06-17.

CVE-2025-55586

CVE-2025-55586 is a high-severity vulnerability in Totolink A3002r Firmware with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28596
Weakness: CWE-400
Affected product: Totolink A3002r Firmware
Published: 2025-08-18
Last modified: 2026-06-17

Description

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the url parameter at /boafrm/formFilter. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Frequently asked questions

What is CVE-2025-55586?: TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the url parameter at /boafrm/formFilter. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
How severe is CVE-2025-55586?: CVE-2025-55586 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-55586 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55586?: CVE-2025-55586 affects Totolink A3002r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55586?: 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-2025-55586 have an EU (EUVD) identifier?: Yes. CVE-2025-55586 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28596.
When was CVE-2025-55586 published?: CVE-2025-55586 was published on 2025-08-18 and last updated on 2026-06-17.

References

https://github.com/goldenGlow21/softwares_PoC/blob/main/A3002R_V4/Boa%20-%20BOF/formFilter%20PoC.md

Affected products (1)

cpe:2.3:o:totolink:a3002r_firmware:4.0.0-b20230531.1404:*:*:*:*:*:*:*

More vulnerabilities in Totolink A3002r Firmware

CVE-2025-55591 — Critical (CVSS 9.8): TOTOLINK-A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability in the devicemac…
CVE-2025-45863 — Critical (CVSS 9.8): TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the macstr parameter in the…
CVE-2025-45865 — Critical (CVSS 9.8): TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the dnsaddr parameter in the…
CVE-2025-45861 — Critical (CVSS 9.8): TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the routername parameter in the…
CVE-2025-45858 — Critical (CVSS 9.8): TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a command injection vulnerability via the FUN_00459fdc…
CVE-2025-25579 — Critical (CVSS 9.8): TOTOLINK A3002R V4.0.0-B20230531.1404 is vulnerable to Command Injection in /bin/boa via bandstr.

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