CVE-2025-6486: A vulnerability was found in TOTOLINK A3002R 1.1.1-B20200824.0128

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HIGH 8.8MITIGATE

CVE-2025-6486 is a high-severity flaw (CVSS 8.8) affecting a3002r firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in TOTOLINK A3002R 1.1.1-B20200824.0128. It has been declared as critical. This vulnerability affects the function formWlanMultipleAP of the file /boafrm/formWlanMultipleAP. The manipulation of the argument submit-url leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-119, CWE-121
Published	2025-06-22
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: totolink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-22 18:15 UTCPublished CVE record published
2026-06-17 10:01 UTCUpdated Record last modified

totolink a3002r firmware MITIGATE

Affected: 1.1.1-b20200824.0128

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.1-b20200824.0128

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-6486?

a3002r firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-6486 being exploited?

CVE-2025-6486 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-6486 affect?

CVE-2025-6486 affects a3002r firmware. Severity is high (CVSS 8.8). A vulnerability was found in TOTOLINK A3002R 1.1.1-B20200824.0128. It has been declared as critical. This vulnerability affects the function formWlanMultipleAP of the file /boafrm/formWlanMultipleAP. The manipulation of the argument submit-

How urgent is CVE-2025-6486?

Priority 52/100. High severity; Public exploit reference

Related CVEs

CVE-2025-6487 HIGH 8.8 MITIGATE A vulnerability was found in TOTOLINK A3002R 1.1.1-B20200824.0128
CVE-2025-6485 MEDIUM 6.3 MITIGATE A vulnerability was found in TOTOLINK A3002R 1.1.1-B20200824.0128
CVE-2025-6393 HIGH 8.8 MITIGATE MITIGATE A vulnerability was found in TOTOLINK A702R, A3002R, A3002RU and EX1200T 3.0.0-B20230809.1615/4.0.0-B20230531.
CVE-2025-6337 HIGH 8.8 MITIGATE MITIGATE A vulnerability was found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615/4.0.0-B20230531.1404
CVE-2025-6164 HIGH 8.8 MITIGATE A vulnerability was found in TOTOLINK A3002R 4.0.0-B20230531.1404

References

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