CVE & CISA-KEV Catalog

CVE-2012-0876

MEDIUMEPSS 92th pctl
4.3
CVSS v2
NVD

Description

The XML parser (xmlparse.c) in expat before 2.1.0 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 an XML file with many identifiers with the same value.

How to fix

Remediation Available
expatDebian
Fixed in:2.1.0~beta3-1CVE-2012-0876
Fixed in:2.1.0~beta3-1CVE-2012-0876
Fixed in:2.1.0~beta3-1CVE-2012-0876
Fixed in:2.1.0~beta3-1CVE-2012-0876
Python 2Windows application
Affected:2.6.0 2.6.8Fixed in:2.6.8Python Software Foundation
Affected:3.2.0 3.2.3Fixed in:3.2.3Python Software Foundation
Affected:2.7.0 2.7.3Fixed in:2.7.3Python Software Foundation
Affected:3.1.0 3.1.5Fixed in:3.1.5Python Software Foundation
Python 3.10Windows application
Affected:2.7.0 2.7.3Fixed in:2.7.3Python Software Foundation
Affected:3.1.0 3.1.5Fixed in:3.1.5Python Software Foundation
Affected:3.2.0 3.2.3Fixed in:3.2.3Python Software Foundation
Affected:2.6.0 2.6.8Fixed in:2.6.8Python Software Foundation
Python 3.11Windows application
Affected:3.1.0 3.1.5Fixed in:3.1.5Python Software Foundation
Affected:2.6.0 2.6.8Fixed in:2.6.8Python Software Foundation
Affected:3.2.0 3.2.3Fixed in:3.2.3Python Software Foundation
Affected:2.7.0 2.7.3Fixed in:2.7.3Python Software Foundation
Python 3.12Windows application
Affected:3.1.0 3.1.5Fixed in:3.1.5Python Software Foundation
Affected:2.7.0 2.7.3Fixed in:2.7.3Python Software Foundation
Affected:3.2.0 3.2.3Fixed in:3.2.3Python Software Foundation
Affected:2.6.0 2.6.8Fixed in:2.6.8Python Software Foundation
Python 3.8Windows application
Affected:3.2.0 3.2.3Fixed in:3.2.3Python Software Foundation
Affected:2.6.0 2.6.8Fixed in:2.6.8Python Software Foundation
Affected:3.1.0 3.1.5Fixed in:3.1.5Python Software Foundation
Affected:2.7.0 2.7.3Fixed in:2.7.3Python Software Foundation
Python 3.9Windows application
Affected:2.6.0 2.6.8Fixed in:2.6.8Python Software Foundation
Affected:3.1.0 3.1.5Fixed in:3.1.5Python Software Foundation
Affected:2.7.0 2.7.3Fixed in:2.7.3Python Software Foundation
Affected:3.2.0 3.2.3Fixed in:3.2.3Python Software Foundation

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

5.72%probability of exploitation in 30 days
92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

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CVE-2023-44487High7.5100%KEVFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2011-3192High7.899%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2024-25617Medium5.389%-Fix
CVE-2018-1000115High7.589%-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.