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01 Record

CVE-2026-0625

D-Link DSL/DIR/DNS Authentication Bypass via DNS Configuration Endpoint

CriticalPUBLISHEDCNA: VulnCheck
CNA base score9.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

02 Description

D-Link DSL/DIR/DNS Authentication Bypass via DNS Configuration Endpoint

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.97% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 61.7% of scored records. A rank, not a probability.
NVD base score
9.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
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:X/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
NVD analysis status
Deferred. NVD last modified this record on 2026-10-26.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-01-05 21:14Z9 MO AGO
Last updated
2026-05-25 23:41Z5 MO AGO
Reserved
2026-01-05
Assigning CNA
VulnCheck
Record state
PUBLISHED
Severity
Critical (CVSS 9.3)
CNA CVSS vector
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
Weaknesses
  • CWE-306Missing Authentication for Critical FunctionBase
Data version
5.2
Document digest
96f59d20d30df4bde16075a9add664cb08de36f48d3e152e194fb9b88fcb2c99

05 Affected products

VendorProductVersionsPlatforms
D-LinkDSL-2640B0—
D-LinkDSL-2740R0—
D-LinkDSL-2780B0—
D-LinkDSL-526B0—
D-LinkDSL-2640T0—
D-LinkDSL-5000—
D-LinkDSL-500G0—
D-LinkDSL-502G0—
D-LinkDIR-905L0—
D-LinkDIR-6000—
D-LinkDIR-6080—
D-LinkDIR-6100—
D-LinkDIR-6110—
D-LinkDIR-6150—
D-LinkDNS-3200—
D-LinkDNS-3250—
D-LinkDNS-3450—

06 References

07 Remediation

D-Link Systems, Inc. recommends retiring these products and replacing them with products that receive firmware updates.