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01 Record

CVE-2021-20694

Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified

UnratedPUBLISHEDCNA: jpcert
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.70% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 76.8% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
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
2021-04-26 00:20Z5 YR AGO
Last updated
2024-08-03 17:45Z2 YR AGO
Reserved
2020-12-17
Assigning CNA
jpcert
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.1
Document digest
853b8bcef0bd27ed069b8ec75ac547a5146bd99fe92bbe7eb5336207161885e0

05 Affected products

VendorProductVersionsPlatforms
D-Link Japan K.K.DAP-1880ACfirmware version 1.21 and earlier—

06 References