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I. Basic Information for CVE-2026-5466
Vulnerability Information

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Vulnerability Title
wc_VerifyEccsiHash missing sanity check
Source: NVD (National Vulnerability Database)
Vulnerability Description
wolfSSL's ECCSI signature verifier `wc_VerifyEccsiHash` decodes the `r` and `s` scalars from the signature blob via `mp_read_unsigned_bin` with no check that they lie in `[1, q-1]`. A crafted forged signature could verify against any message for any identity, using only publicly-known constants.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
密码学签名的验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
wolfSSL(CyaSSL) 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wolfSSL(CyaSSL)是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL存在安全漏洞,该漏洞源于ECCSI签名验证器未检查标量范围,可能导致特制伪造签名通过验证。
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
wolfSSLwolfSSL 0 ~ 5.9.1 -
II. Public POCs for CVE-2026-5466
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III. Intelligence Information for CVE-2026-5466
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IV. Related Vulnerabilities
V. Comments for CVE-2026-5466

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