Is CVE-2020-12663 in the CISA KEV catalog?

No. CVE-2020-12663 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-12663?

CVE-2020-12663 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-12663?

CVE-2020-12663 has an EPSS score of 3.59% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-12663?

Upgrade unbound on debian 11 to 1.10.1-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-12663

HIGHEPSS 88th pctl

7.5

CVSS v3

NVD

Description

Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

CWE-835

How to fix

Remediation Available

unboundDebian

Fixed in:1.10.1-1CVE-2020-12663

libunbound2Ubuntu

Fixed in:1.6.7-1ubuntu2.3USN-4374-1

libunbound8Ubuntu

Fixed in:1.9.4-2ubuntu1.1USN-4374-1

unboundUbuntu

Fixed in:1.6.7-1ubuntu2.3USN-4374-1

Fixed in:1.9.4-2ubuntu1.1USN-4374-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.59%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

openwall.com

Vendor Advisory1

nlnetlabs.nl

Third-Party Advisory6

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.