CVE-2025-6393

Name: CVE-2025-6393
Creator: NVD / NIST
Published: 2025-06-21T01:15:29.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2025-6393 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability was found in TOTOLINK A702R, A3002R, A3002RU and EX1200T 3.0.0-B20230809.1615/4.0.0-B20230531.1404/4.0.0-B20230721.1521/4.1.2cu.5232_B20210713. It has been classified as critical. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

A vulnerability was found in TOTOLINK A702R, A3002R, A3002RU and EX1200T 3.0.0-B20230809.1615/4.0.0-B20230531.1404/4.0.0-B20230721.1521/4.1.2cu.5232_B20210713. It has been classified as critical. Affected is an unknown function of the file /boafrm/formIPv6Addr of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

7.4/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	A3002ru Firmware	3.0.0-b20230809.1615
Totolink	A3002r Firmware	4.0.0-b20230531.1404
Totolink	A702r Firmware	4.0.0-b20230721.1521
Totolink	Ex1200t Firmware	4.1.2cu.5232_b20210713

References

https://github.com/awindog/cve/blob/main/688/15.mdExploit, Third Party Advisory
https://github.com/awindog/cve/blob/main/688/16.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.313386Permissions Required, VDB Entry
https://vuldb.com/?id.313386Third Party Advisory, VDB Entry
https://vuldb.com/?submit.597565Third Party Advisory, VDB Entry
https://vuldb.com/?submit.597566Third Party Advisory, VDB Entry
https://vuldb.com/?submit.597591Third Party Advisory, VDB Entry
https://vuldb.com/?submit.597592Third Party Advisory, VDB Entry
https://www.totolink.net/Product
https://github.com/awindog/cve/blob/main/688/15.mdExploit, Third Party Advisory

Timeline

Published: Jun 21, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-6393?

How severe is CVE-2025-6393?

CVE-2025-6393 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2025-6393?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-6393?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST