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Vulnerabilities

Vulnerability · CVE-2025-14208

A security flaw has been discovered in D-Link DIR-823X up to 20250416.

Published Dec 8, 2025 · catalog updated Oct 14, 2026 · D-Link

Patch now

CVE-2025-14208 is in the CISA known-exploited catalog. Confirm D-Link against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Low2.1
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
3.39%
Remediation
Remediation guidance
Affected products
cpe dlink/dir-823x firmware · vendor D-Link dir-823x_firmware

A security flaw has been discovered in D-Link DIR-823X up to 20250416. This affects the function sub_415028 of the file /goform/set_wan_settings. The manipulation of the argument ppp_username results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited.

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.

  • cpe dlink/dir-823x firmwareversion unspecified
  • vendor D-Link dir-823x_firmwareversion unspecified

How to fix CVE-2025-14208

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-14208 is in the CISA known-exploited catalog. Confirm D-Link against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-74: Injection; CWE-77: Command Injection. EPSS 3.39%. The CISA KEV listing is the exploitation evidence. 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.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 8, 2025 · NIST NVD

    Detected

    A security flaw has been discovered in D-Link DIR-823X up to 20250416. This affects the function sub_415028 of the file /goform/set_wan_settings. The manipulation of the argument ppp_username results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited.

  2. Sep 7, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  3. Oct 14, 2026 · NIST NVD

    Updated

    A security flaw has been discovered in D-Link DIR-823X up to 20250416. This affects the function sub_415028 of the file /goform/set_wan_settings. The manipulation of the argument ppp_username results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited.

Sources

  • CVE.orgVulnerability recordCVE-2025-14208

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-14208

    30-day exploitation probability 3.4%

    first.org
  • NIST NVDVulnerability recordCVE-2025-14208

    A security flaw has been discovered in D-Link DIR-823X up to 20250416. This affects the function sub_415028 of the file /goform/set_wan_settings. The manipulation of the argument ppp_username results in command injection. It is possible to launch the attack remotely. The exploit

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2025-14208

    A security flaw has been discovered in D-Link DIR-823X up to 20250416. This affects the function sub_415028 of the file /goform/set_wan_settings. The manipulation of the argument ppp_username results in command injection. It is possible to launch the attack remotely. The exploit

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.