Is CVE-2012-0840 in the CISA KEV catalog?

No. CVE-2012-0840 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-0840?

CVE-2012-0840 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2012-0840?

CVE-2012-0840 has an EPSS score of 43.35% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2012-0840

MEDIUMEPSS 99th pctl

5.0

CVSS v2

NVD

Description

tables/apr_hash.c in the Apache Portable Runtime (APR) library through 1.4.5 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

CWE-20Improper Input Validation

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

43.35%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

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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 2026-04-29.