CVE-2026-32776
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I. Basic Information for CVE-2026-32776
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
libexpat 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libexpat是libexpat团队的一款使用C语言编写的流式XML解析器。 libexpat 2.7.5之前版本存在代码问题漏洞，该漏洞源于处理空外部参数实体内容时允许空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| libexpat project | libexpat | 0 ~ 2.7.5 | - |
II. Public POCs for CVE-2026-32776
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · libexpat project · 2026-03-16 · 3 CVEs total
| CVE-2026-32777 | 4.0 MEDIUM | libexpat 安全漏洞 |
| CVE-2026-32778 | 2.9 LOW | libexpat 代码问题漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-476
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Open5GS SMF smf_nsmf_handle_create_data_in_hsmf null pointer - CVE-2026-7259
Null pointer dereference in php_mb_check_encoding() via mb_e - CVE-2026-7262
NULL pointer dereference in SOAP apache:Map decoder with mis - CVE-2026-42183
Argo Workflows: SSO RBAC Delegation Nil Pointer Dereference - CVE-2026-6666
PgBouncer crash in kill_pool_logins_server_error
V. Comments for CVE-2026-32776
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