CVE-2021-20132
CVSS v3
8.8
HIGH
EPSS Score
4.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the "admin" user, UID 0).
Technical details
- Published
- 2021-12-30
Frequently asked questions
What is CVE-2021-20132?
Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the "admin" user, UID 0).
Is CVE-2021-20132 actively exploited?
Active exploitation of CVE-2021-20132 has not been confirmed. Its EPSS score was 4.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-20132?
CVE-2021-20132 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-20132 affecting your environment?
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