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CVE-2026-14316— Heap buffer overflow in boks_sshd revoked-key error handling

Quick assessment

Affected
Fortra Core Privileged Access Manager (BoKS)
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.

在已撤销密钥的错误处理路径中，程序使用 函数将人类可读的失败原因写入一个堆缓冲区。然而，所分配的缓冲区大小不足以容纳最终格式化后的完整消息。当 写入完整消息时，可能会超出堆分配区域的末尾，导致缓冲区溢出。

CVSS 8.1 · High EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 2

VendorProduct Version RangeStatus
Fortra Core Privileged Access Manager (BoKS) 8.1.0.0< 8.1.0.30 affected
10.1.0.0< 10.1.1.0 affected
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I. Basic Information for CVE-2026-14316

Vulnerability Information
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Vulnerability Title
Heap buffer overflow in boks_sshd revoked-key error handling
Source: CVE Program / CVE List V5
Vulnerability Description
The revoked-key error path builds a human-readable failure reason using sprintf() into a heap buffer. The allocated buffer is too small for the final formatted message. When sprintf() writes the full message, it can write past the end of the heap allocation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Fortra Core Privileged Access Manager (BoKS) 8.1.0.0 ~ 8.1.0.30 -

II. Public POCs for CVE-2026-14316

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III. Intelligence Information for CVE-2026-14316

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Same Patch Batch · Fortra · 2026-10-01 · 8 CVEs total

CVE-2026-79901 9.9 CRITICAL Predictable Active Directory service-account passwords in BoKS Manager
CVE-2026-12627 9.8 CRITICAL Fortra's Core Privileged Access Manager (BoKS) autoregistration stack buffer overflow vuln
CVE-2026-79898 9.1 CRITICAL Fortra BoKS Manager crlserver command injection vulnerability
CVE-2026-79899 7.9 HIGH Fortra BoKS Manager bccgethostcert insecure temporary file vulnerability
CVE-2026-79896 7.5 HIGH Fortra BoKS Manager boks_portmux TLS ClientHello out-of-bounds read vulnerability
CVE-2026-79900 6.5 MEDIUM Heap overflow in KSL checksum initialization
CVE-2026-9864 4.8 MEDIUM Fortra BoKS Server Agent adjoin machine-account password generation vulnerability

IV. Related Vulnerabilities

Same product: Core Privileged Access Manager (BoKS)
Same vendor: Fortra
Same weakness: CWE-122

V. Comments for CVE-2026-14316

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