Is CVE-2012-3526 in the CISA KEV catalog?

No. CVE-2012-3526 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-3526?

CVE-2012-3526 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2012-3526?

CVE-2012-3526 has an EPSS score of 6.95% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-3526?

Upgrade libapache2-mod-rpaf on debian 11 to 0.6-1 or later.

CVE & CISA-KEV Catalog

CVE-2012-3526

MEDIUMEPSS 93th pctl

5.0

CVSS v2

NVD

Description

The reverse proxy add forward module (mod_rpaf) 0.5 and 0.6 for the Apache HTTP Server allows remote attackers to cause a denial of service (server or application crash) via multiple X-Forwarded-For headers in a request.

How to fix

Remediation Available

libapache2-mod-rpafDebian

Fixed in:0.6-1CVE-2012-3526

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

6.95%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Vendor Advisory1

secunia.com

Other references7

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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.