In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
Metrics
Affected Vendors & Products
References
History
Tue, 03 Feb 2026 17:15:00 +0000
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ssvc
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Sat, 31 Jan 2026 00:15:00 +0000
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| Title | libexpat: libexpat: Information disclosure and data integrity issues due to integer overflow in buffer reallocation | |
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threat_severity
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threat_severity
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Fri, 30 Jan 2026 07:15:00 +0000
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| Description | In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation. | |
| First Time appeared |
Libexpat Project
Libexpat Project libexpat |
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| Weaknesses | CWE-190 | |
| CPEs | cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Libexpat Project
Libexpat Project libexpat |
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cvssV3_1
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Status: PUBLISHED
Assigner: mitre
Published: 2026-01-30T06:40:27.917Z
Updated: 2026-02-03T16:42:10.810Z
Reserved: 2026-01-30T06:40:27.642Z
Link: CVE-2026-25210
Updated: 2026-02-03T15:53:38.257Z
Status : Received
Published: 2026-01-30T07:16:15.570
Modified: 2026-01-30T07:16:15.570
Link: CVE-2026-25210