Vulnerability · CVE-2025-6121
A vulnerability, which was classified as critical, has been found in D-Link DIR-632 FW103B08.
Published Jun 16, 2025 · catalog updated Jun 16, 2025 · D-Link DIR-632
Check if you run it
No confirmed exploitation is on record for CVE-2025-6121. EPSS is 2.78%. Act only if a listed version of D-Link DIR-632 is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Critical9.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 2.78%
- Remediation
- Vendor / distro source
- Affected products
- vendor D-Link DIR-632 FW103B08
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor D-Link DIR-632 FW103B08FW103B08
How to fix CVE-2025-6121
Recommended remediation
A vendor or distribution source is linked. Check that advisory for patch availability; this catalog does not invent fix status.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-6121. EPSS is 2.78%. Act only if a listed version of D-Link DIR-632 is installed.
Which versions are affected?
Compare what you have installed with D-Link DIR-632 FW103B08 FW103B08. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 2.78%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Jun 16, 2025 · EUVD
Detected
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 on
Jun 16, 2025 · EUVD
Updated
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 on
Sources
- CVE.orgVulnerability recordCVE-2025-6121
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-6121
30-day exploitation probability 2.78%
first.org - EUVDVulnerability recordEUVD-2025-18394
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.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.