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I. Basic Information for CVE-2025-48172
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
CHMLib through 2bef8d0, as used in SumatraPDF and other products, has a chm_lib.c _chm_decompress_block integer overflow. There is a resultant heap-based buffer overflow in _chm_fetch_bytes.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Vulnerability Title
CHMLib 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CHMLib是jedwing个人开发者的一个用于处理CHM文件的函数库。 CHMLib 2bef8d0及之前版本存在输入验证错误漏洞,该漏洞源于_chm_decompress_block整数溢出,可能导致堆缓冲区溢出。
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
VendorProductAffected VersionsCPESubscribe
CHMLibCHMLib 0 ~ 2bef8d063ec7d88a8de6fd9f0513ea42ac0fa21f -
II. Public POCs for CVE-2025-48172
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III. Intelligence Information for CVE-2025-48172
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IV. Related Vulnerabilities
V. Comments for CVE-2025-48172

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