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CVE-2021-26091

CVSS 6.9 · High EPSS 0.27% · P50
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I. Basic Information for CVE-2021-26091

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Based Encryption service of FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to infer parts of users authentication tokens and reset their credentials.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用具有密码学弱点缺陷的PRNG
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fortinet FortiMail 安全特征问题特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiMail是美国飞塔（Fortinet）公司的一套电子邮件安全网关产品。该产品提供电子邮件安全防护和数据保护等功能。 Fortinet FortiMail 存在安全特征问题漏洞，该漏洞源于FortiMail 基于身份加密服务的身份验证器中使用了弱伪随机数生成器。攻击者可利用该漏洞推断部分用户身份验证令牌并重置他们的凭据。
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
FortinetFortiMail 6.4.0 ~ 6.4.4 cpe:2.3:a:fortinet:fortimail:6.4.4:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-26091

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III. Intelligence Information for CVE-2021-26091

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Same Patch Batch · Fortinet · 2025-03-24 · 3 CVEs total

CVE-2023-256109.3 CRITICALFortinet FortiOS和FortiProxy 安全漏洞
CVE-2021-261056.4 MEDIUMFortinet FortiSandbox 安全漏洞

IV. Related Vulnerabilities

Same product: FortiMail
Same vendor: Fortinet
Same weakness: CWE-338

V. Comments for CVE-2021-26091

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