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CVE-2021-20132

HIGHCVSS 8.8/10EPSS 4.29%

Last modified

CVE-2021-20132 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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).. EPSS estimates a 4.29% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
4.29%

89.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DlinkDir-2640-Us Firmware<= 1.11b02

References

Timeline

Published
Last Modified
Status
Modified

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).
How severe is CVE-2021-20132?
CVE-2021-20132 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 4.29% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20132?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20132?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST