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CVE-2025-8746— GNU libopts __strstr_sse2 memory corruption

Quick assessment

Affected
GNU libopts
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GNU libopts是美国GNU社区的一个用于解析命令行选项的C语言库。 GNU libopts 27.6及之前版本存在缓冲区错误漏洞，该漏洞源于函数__strstr_sse2存在内存损坏问题。

CVSS 3.3 · Low EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-8746

Vulnerability Information
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Vulnerability Title
GNU libopts __strstr_sse2 memory corruption
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
GNU libopts 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU libopts是美国GNU社区的一个用于解析命令行选项的C语言库。 GNU libopts 27.6及之前版本存在缓冲区错误漏洞，该漏洞源于函数__strstr_sse2存在内存损坏问题。
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
GNU libopts 27.0 -

II. Public POCs for CVE-2025-8746

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III. Intelligence Information for CVE-2025-8746

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Vendor Advisories for CVE-2025-8746 (1)

Vendor Pages for CVE-2025-8746 (1)

IV. Related Vulnerabilities

Same vendor: GNU
Same weakness: CWE-119

V. Comments for CVE-2025-8746

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