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Vulnerabilities

Vulnerability · CVE-2025-52222

D-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.07.26A1, DI-8100 v1…

Published Apr 8, 2026 · catalog updated Jul 25, 2026 · di-8100 firmware

Check if you run it

No confirmed exploitation is on record for CVE-2025-52222. EPSS is 0.33%. Act only if a listed version of di-8100 firmware is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.33%
Remediation
Advisory link
Affected products
cpe dlink/di-8003 firmware · cpe dlink/di-8003g firmware · cpe dlink/di-8004w firmware · cpe dlink/di-8100 firmware · cpe dlink/di-8100g firmware · cpe dlink/di-8200 firmware

D-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.07.26A1, DI-8100 v16.07.26A1, and DI-8100G v17.12.20A1 were discovered to contain a buffer overflow via the rd_en, rd_auth, rd_acct, http_hadmin, http_hadminpwd, rd_key, and rd_ip parameters in the radius_asp function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

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/di-8003 firmware16.07.26a1
  • cpe dlink/di-8003g firmware17.12.21a1
  • cpe dlink/di-8004w firmware16.07.26a1
  • cpe dlink/di-8100 firmware16.07.26a1
  • cpe dlink/di-8100g firmware17.12.20a1
  • cpe dlink/di-8200 firmware16.07.26a1
  • cpe dlink/di-8200g firmware17.12.20a1
  • cpe dlink/di-8400 firmware16.07.26a1
  • cpe dlink/di-8500 firmware16.07.26a1

How to fix CVE-2025-52222

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-2025-52222. EPSS is 0.33%. Act only if a listed version of di-8100 firmware is installed.

Which versions are affected?

Compare what you have installed with dlink/di-8003 firmware 16.07.26a1; dlink/di-8003g firmware 17.12.21a1; dlink/di-8004w firmware 16.07.26a1; dlink/di-8100 firmware 16.07.26a1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-120: Classic Buffer Overflow. EPSS 0.33%. 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.

  1. Apr 8, 2026 · NIST NVD

    Detected

    D-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.07.26A1, DI-8100 v16.07.26A1, and DI-8100G v17.12.20A1 were discovered to contain a buffer overflow via the rd_en, rd_auth, rd_acct, http_hadmin, http_hadminpwd, rd_key, and rd_ip parameters in the radius_asp function. This vulnerability allows attacke

  2. Jul 25, 2026 · NIST NVD

    Updated

    D-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.07.26A1, DI-8100 v16.07.26A1, and DI-8100G v17.12.20A1 were discovered to contain a buffer overflow via the rd_en, rd_auth, rd_acct, http_hadmin, http_hadminpwd, rd_key, and rd_ip parameters in the radius_asp function. This vulnerability allows attacke

Sources

  • CVE.orgVulnerability recordCVE-2025-52222

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-52222

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2025-52222

    D-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.07.26A1, DI-8100 v16.07.26A1, and DI-8100G v17.12.20A1 were discovered to contain a buffer overflow via the rd_en, rd_auth, rd_acct,

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.