NULL pointer dereference in Apache Xerces C++
Priority MEDIUM 53CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
In Apache Xerces-C XML Parser library before 3.2.1, processing of external DTD paths can result in a null pointer dereference under certain conditions.
Why it matters now
EPSS 0.0829 94th percentileScored 2026-11-07
Fix Partial Apache Xerces C++ (Apache Software Foundation): 3.2.1Red Hat: 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Apache Xerces C++ (Apache Software Foundation) Fixed in 3.2.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise MRG 3 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12627
- 2026-10-03 Alias added: GHSA-rh3v-mpfh-4wwj
References
Advisory 2
More Apache Xerces-c++ vulnerabilities
- TI-2016-01924 Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 3.1.3… CVSS 3.0CRITICAL 9.8
- TI-2015-00221 internal/XMLReader.cpp in Apache Xerces-C before 3.1.2 allows remote attackers to cause a… CVSS 2.0MEDIUM 5.0
- TI-2016-03837 Stack-based buffer overflow in Apache Xerces-C++ before 3.1.4 allows context-dependent… CVSS 3.0HIGH 7.5
- TI-2018-01214 Use after free in Apache Xerces-C CVSS 3.1HIGH 8.1
- TI-2024-15801 Apache Xerces C++: Use-after-free on external DTD scan CVSS 3.1CRITICAL 9.8
- TI-2023-19135 HCL BigFix Platform is vulnerable to an integer overflow in xerces-c++ 3.2.3 CVSS 3.1HIGH 8.8
Sources
- CVE-2017-12627 · CVE Program
- CVE-2017-12627 · NVD
- FIRST EPSS
- GHSA-rh3v-mpfh-4wwj · GitHub Advisory Database · CC BY 4.0
- CVE-2017-12627 · Red Hat security data · CC BY 4.0
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