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Maven
Not in CISA KEV
HIGH severity

CVE-2012-0881

HIGH

CVE-2012-0881 is a high-severity (CVSS 7.5) CWE-399 vulnerability in xerces:xercesImpl. O3 Security confirms whether CVE-2012-0881 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Denial of service in Apache Xerces2

Also known asGHSA-vmqm-g3vh-847m
Published
Oct 30, 2017
Updated
Apr 10, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Apr 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
xerces:xercesImpl

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Apache Xerces2 Java Parser before 2.12.0 allows remote attackers to cause a denial of service (CPU consumption) via a crafted message to an XML service, which triggers hash table collisions.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavenxerces:xercesImplall versions2.12.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for xerces:xercesImpl. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update xerces:xercesImpl to 2.12.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2012-0881 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether CVE-2012-0881 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2012-0881. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Apache Xerces2 Java Parser before 2.12.0 allows remote attackers to cause a denial of service (CPU consumption) via a crafted message to an XML service, which triggers hash table collisions.
O3 Security · Impact-Aware SCA

Is CVE-2012-0881 in your dependencies?

O3 detects CVE-2012-0881 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

CVE-2012-0881: Denial of service in Apache… | O3 Security