How severe is CVE-2012-0024?

CVE-2012-0024 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2012-0024 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0024?

CVE-2012-0024 affects Maradns. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-0024?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-0024 published?

CVE-2012-0024 was published on 2012-01-08 and last updated on 2026-06-16.

CVE-2012-0024

CVE-2012-0024 is a high-severity vulnerability in Maradns with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Maradns
Published: 2012-01-08
Last modified: 2026-06-16

Description

MaraDNS before 1.3.07.12 and 1.4.x before 1.4.08 computes hash values for DNS data without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted queries with the Recursion Desired (RD) bit set.

Frequently asked questions

What is CVE-2012-0024?: MaraDNS before 1.3.07.12 and 1.4.x before 1.4.08 computes hash values for DNS data without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted queries with the Recursion Desired (RD) bit set.
How severe is CVE-2012-0024?: CVE-2012-0024 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2012-0024 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0024?: CVE-2012-0024 affects Maradns. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-0024?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-0024 published?: CVE-2012-0024 was published on 2012-01-08 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:maradns:maradns:*:*:*:*:*:*:*:*

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