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7 vulnerabilities found for libxml2 by xmlsoft
CVE-2026-11979 (GCVE-0-2026-11979)
Vulnerability from cvelistv5
Published
2026-06-29 13:21
Modified
2026-06-29 13:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-121 - Stack-based Buffer Overflow
Summary
libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell() function processes user input using fixed-size stack buffers without proper bounds checking.
By supplying an overly long input line, an attacker can overflow internal buffers (command, arg, and argv) during input parsing. This results in memory corruption within the stack frame.
Successful exploitation may cause a crash or potentially allow arbitrary code execution in the context of the xmlcatalog process.
This issue has been fixed in the commit c2e233fc.
NOTE:
The maintainers of this project did not agree that this issue is a vulnerability and considered it a bug.
References
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CVE-2025-32415 (GCVE-0-2025-32415)
Vulnerability from cvelistv5
Published
2025-04-17 00:00
Modified
2025-11-03 19:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Summary
In libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.
References
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CVE-2025-32414 (GCVE-0-2025-32414)
Vulnerability from cvelistv5
Published
2025-04-08 00:00
Modified
2025-11-03 19:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-393 - Return of Wrong Status Code
Summary
In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API (Python bindings) because of an incorrect return value. This occurs in xmlPythonFileRead and xmlPythonFileReadRaw because of a difference between bytes and characters.
References
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CVE-2024-56171 (GCVE-0-2024-56171)
Vulnerability from cvelistv5
Published
2025-02-18 00:00
Modified
2025-11-03 20:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.
References
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CVE-2025-24928 (GCVE-0-2025-24928)
Vulnerability from cvelistv5
Published
2025-02-18 00:00
Modified
2026-02-26 19:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-121 - Stack-based Buffer Overflow
Summary
libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE: this is similar to CVE-2017-9047.
References
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CVE-2025-27113 (GCVE-0-2025-27113)
Vulnerability from cvelistv5
Published
2025-02-18 00:00
Modified
2025-11-03 21:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in pattern.c.
References
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CVE-2022-49043 (GCVE-0-2022-49043)
Vulnerability from cvelistv5
Published
2025-01-26 00:00
Modified
2025-11-03 20:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
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