Is CVE-2012-1148 in the CISA KEV catalog?

No. CVE-2012-1148 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-1148?

CVE-2012-1148 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2012-1148?

CVE-2012-1148 has an EPSS score of 3.56% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-1148?

Upgrade expat on debian 11 to 2.1.0~beta3-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2012-1148

MEDIUMEPSS 88th pctl

5.0

CVSS v2

NVD

Description

Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large number of crafted XML files that cause improperly-handled reallocation failures when expanding entities.

CWE-399Resource Management Errors

How to fix

Remediation Available

expatDebian

Fixed in:2.1.0~beta3-1CVE-2012-1148

libxmltokUbuntu

Fixed in:1.2-3ubuntu0.16.04.1~esm2USN-5455-1

Fixed in:1.2-4ubuntu0.18.04.1~esm5USN-7307-1

Fixed in:1.2-4ubuntu0.18.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.20.04.1~esm5USN-7307-1

Fixed in:1.2-4ubuntu0.20.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.22.04.1~esm5USN-7307-1

Fixed in:1.2-4ubuntu0.22.04.1~esm1USN-5455-1

Fixed in:1.2-4.1ubuntu2.24.0.4.1+esm3USN-7307-1

libxmltok1Ubuntu

Fixed in:1.2-3ubuntu0.16.04.1~esm2USN-5455-1

Fixed in:1.2-4ubuntu0.18.04.1~esm5USN-7307-1

Fixed in:1.2-4ubuntu0.18.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.20.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.20.04.1~esm5USN-7307-1

Fixed in:1.2-4ubuntu0.22.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.22.04.1~esm5USN-7307-1

libxmltok1t64Ubuntu

Fixed in:1.2-4.1ubuntu2.24.0.4.1+esm3USN-7307-1

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

3.56%probability of exploitation in 30 days

88thpercentile

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

References

Patch1

expat.cvs.sourceforge.net

Vendor Advisory1

secunia.com

Other references16

Related Vulnerabilities

Other CWE-399 (Resource Management Errors) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-3103	High	10.0	90%	-	-
CVE-2009-0075	High	9.3	85%	-	-
CVE-2005-1790	Low	2.6	83%	-	-
CVE-2010-0806	High	8.8	82%	KEV	-
CVE-2009-2526	High	7.8	82%	-	-
CVE-2015-1868	High	7.8	82%	-	Fix

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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.