CVE-2025-6121

Name: CVE-2025-6121
Creator: NVD / NIST
Published: 2025-06-16T12:15:19.97+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.9/10EPSS 1.89%

Last modified Jun 17, 2026

CVE-2025-6121 is a high-severity vulnerability rated 8.9/10 on the CVSS scale. A vulnerability, which was classified as critical, has been found in D-Link DIR-632 FW103B08. Affected by this issue is the function get_pure_content of the component HTTP POST Request Handler. EPSS estimates a 1.89% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as critical, has been found in D-Link DIR-632 FW103B08. Affected by this issue is the function get_pure_content of the component HTTP POST Request Handler. The manipulation of the argument Content-Length leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

8.9/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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

1.89%

76.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	Dir-632 Firmware	103b08

References

https://github.com/xiaobor123/vul-finds/tree/main/vul-find-dir632-dlink-get_pure_contentExploit, Third Party Advisory
https://github.com/xiaobor123/vul-finds/tree/main/vul-find-dir632-dlink-get_pure_content#pocExploit, Third Party Advisory
https://vuldb.com/?ctiid.312590Permissions Required
https://vuldb.com/?id.312590Third Party Advisory, VDB Entry
https://vuldb.com/?submit.592574Third Party Advisory, VDB Entry
https://www.dlink.com/Product

Timeline

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

Frequently Asked Questions

What is CVE-2025-6121?

How severe is CVE-2025-6121?

CVE-2025-6121 has a CVSS score of 8.9/10 (HIGH severity). The EPSS model estimates a 1.89% probability of exploitation in the next 30 days.

How do I fix CVE-2025-6121?

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-2025-6121?

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

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Source: NVD / NIST