CVE-2025-4852

Name: CVE-2025-4852
Creator: NVD / NIST
Published: 2025-05-18T04:15:28.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2025-4852 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A vulnerability, which was classified as problematic, has been found in TOTOLINK A3002R 2.1.1-B20230720.1011. This issue affects some unknown processing of the component VPN Page. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as problematic, has been found in TOTOLINK A3002R 2.1.1-B20230720.1011. This issue affects some unknown processing of the component VPN Page. The manipulation of the argument Comment leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Metrics

CVSS 3.1

3.4/10

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

CVSS 4.0

4.8/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/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

0.34%

25.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	A3002r Firmware	2.1.1-b20230720.1011

References

https://github.com/fizz-is-on-the-way/Iot_vuls/tree/main/A3002RU_V2/XSS_VPNExploit
https://vuldb.com/?ctiid.309323Permissions Required, VDB Entry
https://vuldb.com/?id.309323Third Party Advisory, VDB Entry
https://vuldb.com/?submit.575099Third Party Advisory, VDB Entry
https://www.totolink.net/Product
https://github.com/fizz-is-on-the-way/Iot_vuls/tree/main/A3002RU_V2/XSS_VPNExploit

Timeline

Published: May 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-4852?

How severe is CVE-2025-4852?

CVE-2025-4852 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2025-4852?

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-2025-4852?

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

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Source: NVD / NIST