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I. Basic Information for CVE-2026-26740
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Giflib 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Giflib是openEuler开源的一个用于处理 GIF 的库和实用程序。 giflib 5.2.2版本存在安全漏洞,该漏洞源于EGifGCBToExtension覆盖现有图形控制扩展块时未验证其分配大小,可能导致拒绝服务攻击。
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
-n/a n/a -
II. Public POCs for CVE-2026-26740
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III. Intelligence Information for CVE-2026-26740
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IV. Related Vulnerabilities
V. Comments for CVE-2026-26740

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