How severe is CVE-2025-52222?

CVE-2025-52222 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-52222 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52222?

CVE-2025-52222 primarily affects Dlink Di-8100 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-52222?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-52222 have an EU (EUVD) identifier?

Yes. CVE-2025-52222 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209315.

When was CVE-2025-52222 published?

CVE-2025-52222 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2025-52222

CVE-2025-52222 is a high-severity vulnerability in Dlink Di-8100 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209315
Weakness: CWE-120
Affected product: Dlink Di-8100 Firmware
Published: 2026-04-08
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2025-52222?: CVE-2025-52222 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-52222 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52222?: CVE-2025-52222 primarily affects Dlink Di-8100 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-52222?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-52222 have an EU (EUVD) identifier?: Yes. CVE-2025-52222 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209315.
When was CVE-2025-52222 published?: CVE-2025-52222 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:o:dlink:di-8100_firmware:16.07.26a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8100g_firmware:17.12.20a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8004w_firmware:16.07.26a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8003g_firmware:17.12.21a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8003_firmware:16.07.26a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8500_firmware:16.07.26a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8200g_firmware:17.12.20a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8200_firmware:16.07.26a1:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8400_firmware:16.07.26a1:*:*:*:*:*:*:*

More vulnerabilities in Dlink Di-8100 Firmware

CVE-2026-7854 — Critical (CVSS 9.8): A security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function…
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