CVE-2026-56409
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I. Basic Information for CVE-2026-56409
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| libexpat project | libexpat | 0 ~ 2.8.2 | - |
II. Public POCs for CVE-2026-56409
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Other References for CVE-2026-56409 (1)
Same Patch Batch · libexpat project · 2026-06-21 · 10 CVEs total
| CVE-2026-56405 | 6.9 MEDIUM | libexpat < 2.8.2 getAttributeId 整数溢出漏洞 |
| CVE-2026-56404 | 6.9 MEDIUM | libexpat 2.8.2之前版本integer overflow漏洞 |
| CVE-2026-56407 | 6.9 MEDIUM | libexpat<2.8.2 doProlog整数溢出漏洞 |
| CVE-2026-56403 | 6.9 MEDIUM | libexpat <2.8.2 storeAtts整数溢出漏洞 |
| CVE-2026-56411 | 6.9 MEDIUM | libexpat整数溢出漏洞 |
| CVE-2026-56410 | 6.9 MEDIUM | libexpat<2.8.2 xmlwf整数溢出漏洞 |
| CVE-2026-56408 | 6.9 MEDIUM | libexpat <2.8.2 copyString整数溢出漏洞 |
| CVE-2026-56406 | 6.9 MEDIUM | libexpat <2.8.2 整数溢出漏洞 |
| CVE-2026-56412 | 4.9 MEDIUM | libexpat <2.8.2 UAF漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-56409
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