CVE-2025-6139

Name: CVE-2025-6139
Creator: NVD / NIST
Published: 2025-06-16T21:15:24.513+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.1/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2025-6139 is a low-severity vulnerability rated 1.1/10 on the CVSS scale. A vulnerability, which was classified as problematic, has been found in TOTOLINK T10 4.1.8cu.5207. Affected by this issue is some unknown functionality of the file /etc/shadow.sample. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as problematic, has been found in TOTOLINK T10 4.1.8cu.5207. Affected by this issue is some unknown functionality of the file /etc/shadow.sample. The manipulation leads to use of hard-coded password. The attack can only be initiated within the local network. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.

Metrics

CVSS 3.1

3.9/10

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

CVSS 4.0

1.1/10

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

0.33%

24.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totolink	T10 Firmware	4.1.8cu.5207_b20210320

References

https://candle-throne-f75.notion.site/TOTOLINK-T10-shadow-20ddf0aa118580f5a455cd5dbc521472Exploit, Third Party Advisory
https://vuldb.com/?ctiid.312608Permissions Required, VDB Entry
https://vuldb.com/?id.312608Third Party Advisory, VDB Entry
https://vuldb.com/?submit.592922Third Party Advisory, VDB Entry
https://www.totolink.net/Product

Timeline

Published: Jun 16, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-6139?

How severe is CVE-2025-6139?

CVE-2025-6139 has a CVSS score of 1.1/10 (LOW severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2025-6139?

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-2025-6139?

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

Scan your code now

Source: NVD / NIST