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CVE-2026-59837

Quick assessment

Affected
Fortinet FortiPAM
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.

Fortinet fortios是美国Fortinet公司的一款安全操作系统。 Fortinet FortiOS存在缓冲区错误漏洞，该漏洞源于栈缓冲区溢出问题，可能导致具有特权的已认证攻击者通过特制HTTP请求绕过堆栈保护和ASLR，执行任意代码或命令。以下版本受到影响：FortiOS 7.4.0至7.4.1版本、7.2所有版本，FortiPAM 1.8.0至1.8.2版本、1.7所有版本、1.6所有版本、1.5所有版本、1.4所有版本、1.3所有版本、1.2所有版本、1.1所有版本、1.0所有版本，Fo

CVSS 5.9 · Medium EPSS 0.67% · P50

Affected Version Matrix 16

VendorProduct Version RangeStatus
Fortinet FortiOS 7.4.0≤ 7.4.1 affected
7.2.0≤ 7.2.13 affected
7.0.0≤ 7.0.19 affected
6.4.0≤ 6.4.16 affected
Fortinet FortiPAM 1.8.0≤ 1.8.2 affected
1.7.0≤ 1.7.2 affected
1.6.0≤ 1.6.2 affected
1.5.0≤ 1.5.1 affected
1.4.0≤ 1.4.3 affected
1.3.0≤ 1.3.1 affected
1.2.0 affected
1.1.0≤ 1.1.2 affected
… +1 more rows
Fortinet FortiProxy 7.4.0≤ 7.4.13 affected
7.2.0≤ 7.2.16 affected
Fortinet FortiSASE 26.1.1≤ 26.1.2 affected
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I. Basic Information for CVE-2026-59837

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2 all versions, FortiPAM 1.8.0 through 1.8.2, FortiPAM 1.7 all versions, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions may allow a privileged authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiOS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet fortios是美国Fortinet公司的一款安全操作系统。 Fortinet FortiOS存在缓冲区错误漏洞，该漏洞源于栈缓冲区溢出问题，可能导致具有特权的已认证攻击者通过特制HTTP请求绕过堆栈保护和ASLR，执行任意代码或命令。以下版本受到影响：FortiOS 7.4.0至7.4.1版本、7.2所有版本，FortiPAM 1.8.0至1.8.2版本、1.7所有版本、1.6所有版本、1.5所有版本、1.4所有版本、1.3所有版本、1.2所有版本、1.1所有版本、1.0所有版本，Fo
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
Fortinet FortiPAM 1.8.0 ~ 1.8.2 cpe:2.3:o:fortinet:fortipam:1.8.2:*:*:*:*:*:*:*
Fortinet FortiSASE 26.1.1 ~ 26.1.2 cpe:2.3:a:fortinet:fortisase:26.1.2:*:*:*:*:*:*:*
Fortinet FortiProxy 7.4.0 ~ 7.4.13 cpe:2.3:a:fortinet:fortiproxy:7.4.13:*:*:*:*:*:*:*
Fortinet FortiOS 7.4.0 ~ 7.4.1 cpe:2.3:o:fortinet:fortios:7.4.1:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-59837

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III. Intelligence Information for CVE-2026-59837

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Vendor Advisories for CVE-2026-59837 (1)

Same Patch Batch · Fortinet · 2026-07-14 · 11 CVEs total

CVE-2026-59835 7.7 HIGH Fortinet FortiSandbox 权限许可和访问控制问题漏洞
CVE-2025-53379 7.0 HIGH Fortinet FortiAuthenticator 缓冲区错误漏洞
CVE-2026-59841 6.9 MEDIUM Fortinet FortiSIEMWindowsAgent 授权问题漏洞
CVE-2026-59836 6.7 MEDIUM Fortinet FortiClientEMS 加密问题漏洞
CVE-2026-23573 6.1 MEDIUM Fortinet FortiOS 跨站脚本漏洞
CVE-2026-59839 5.0 MEDIUM Fortinet FortiOS 路径遍历漏洞
CVE-2026-59840 4.1 MEDIUM Fortinet FortiOS 缓冲区错误漏洞
CVE-2025-43892 4.1 MEDIUM Fortinet FortiOS 缓冲区错误漏洞
CVE-2025-62675 3.4 LOW Fortinet FortiOS 输入验证错误漏洞
CVE-2025-62826 3.1 LOW Fortinet FortiOS 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: FortiPAM
Same vendor: Fortinet
Same weakness: CWE-121

V. Comments for CVE-2026-59837

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