CVE-2020-10772

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-11-27 · updated 2026-06-17
Weakness: CWE-406

Description

An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662, and it does not affect upstream versions of Unbound.

Affected products

NLnet Labs Unbound: 1.6.6-5

References

https://bugzilla.redhat.com/show_bug.cgi?id=1846026
https://bugzilla.redhat.com/show_bug.cgi?id=1846026

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