CVE-2025-4834

Name: CVE-2025-4834
Creator: NVD / NIST
Published: 2025-05-17T19:15:46.81+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2025-4834 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been classified as critical. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been classified as critical. Affected is an unknown function of the file /boafrm/formSetLg 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

8.8/10

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

CVSS 4.0

8.7/10

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:X/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

0.66%

46.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	A702r Firmware	3.0.0-b20230809.1615
Totolink	A3002r Firmware	3.0.0-b20230809.1615
Totolink	A3002ru Firmware	3.0.0-b20230809.1615

References

https://github.com/CH13hh/tmp_store_cc/blob/main/toto/12.mdBroken Link
https://vuldb.com/?ctiid.309300Permissions Required, VDB Entry
https://vuldb.com/?id.309300Third Party Advisory, VDB Entry
https://vuldb.com/?submit.574607Third Party Advisory, VDB Entry
https://www.totolink.net/Product

Timeline

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

Frequently Asked Questions

What is CVE-2025-4834?

How severe is CVE-2025-4834?

CVE-2025-4834 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2025-4834?

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-2025-4834?

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

Scan your code now

Source: NVD / NIST