Is CVE-2012-2138 in the CISA KEV catalog?

No. CVE-2012-2138 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-2138?

CVE-2012-2138 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2012-2138?

CVE-2012-2138 has an EPSS score of 14.12% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2012-2138

MEDIUMEPSS 96th pctl

5.0

CVSS v2

NVD

Description

The @CopyFrom operation in the POST servlet in the org.apache.sling.servlets.post bundle before 2.1.2 in Apache Sling does not prevent attempts to copy an ancestor node to a descendant node, which allows remote attackers to cause a denial of service (infinite loop) via a crafted HTTP request.

CWE-264

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

14.12%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% 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.