What’s Vulnerable › Vulnerabilities

CVE-2021-20694

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-26 · updated 2026-06-17

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 vectors.

Affected products

• D-Link Japan K.K. DAP-1880AC: through 1.21

References

• https://jvn.jp/en/vu/JVNVU92898656/index.html
• https://www.dlink-jp.com/support/release/jvnvu92898656_dap-1880ac.html
• https://jvn.jp/en/vu/JVNVU92898656/index.html
• https://www.dlink-jp.com/support/release/jvnvu92898656_dap-1880ac.html

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