CVE-2026-33451— Arbitrary read/write vulnerability in Windows clients prior to 14.50
Quick assessment
Affected
Absolute Software Secure Access
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.
Absolute Secure Access是Absolute公司的一款应用程序。以提供针对混合和移动工作模式优化的安全服务边缘（SSE）。 Absolute Secure Access 14.50之前版本存在缓冲区错误漏洞，该漏洞源于任意读写，可能导致本地攻击者提升权限至系统级别。
Possible ATT&CK Techniques 2 AI
T1068 · Exploitation for Privilege Escalation T1055.001 · Dynamic-link Library InjectionAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Absolute Software | Secure Access | < 14.50 |
affected |
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I. Basic Information for CVE-2026-33451
Vulnerability Information
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Vulnerability Title
Arbitrary read/write vulnerability in Windows clients prior to 14.50
Source: CVE Program / CVE List V5
Vulnerability Description
CVE-2026-33451 is an arbitrary read/write vulnerability in the Secure
Access Windows client prior to 14.50. Attackers with local control of
the Windows client can send malformed data to an API and elevate their
level of privilege to system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Absolute Secure Access 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Absolute Secure Access是Absolute公司的一款应用程序。以提供针对混合和移动工作模式优化的安全服务边缘（SSE）。 Absolute Secure Access 14.50之前版本存在缓冲区错误漏洞，该漏洞源于任意读写，可能导致本地攻击者提升权限至系统级别。
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 |
|---|---|---|---|---|
| Absolute Software | Secure Access | 0 ~ 14.50 | - |
|
II. Public POCs for CVE-2026-33451
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-33451 (1)
Same Patch Batch · Absolute Software · 2026-04-30 · 10 CVEs total
| CVE-2026-33447 | Absolute Secure Access 安全漏洞 | |
| CVE-2026-33446 | Buffer overflow in client authentication prior to version 14.50 | |
| CVE-2026-33448 | Format string vulnerability in MacOS clients prior to 14.50 | |
| CVE-2026-40949 | Buffer overflow in Windows clients prior to 14.50 | |
| CVE-2026-33449 | Message handler buffer overflow in clients prior to 14.50 | |
| CVE-2026-33450 | Out of bounds read in Secure Access MacOS clients prior to 14.50 | |
| CVE-2026-33452 | Buffer overflow in Windows clients prior to 14.50 | |
| CVE-2026-40950 | Buffer overflow in the Secure Access server prior to 14.50 | |
| CVE-2026-40951 | Memory corruption in Secure Access Windows clients prior to 14.50 |
IV. Related Vulnerabilities
Same product: Secure Access
Same vendor: Absolute Software
-
CVE-2026-40951
Memory corruption in Secure Access Windows clients prior to -
CVE-2026-40950
Buffer overflow in the Secure Access server prior to 14.50 -
CVE-2026-40949
Buffer overflow in Windows clients prior to 14.50 -
CVE-2026-33452
Buffer overflow in Windows clients prior to 14.50 -
CVE-2026-33450
Out of bounds read in Secure Access MacOS clients prior to 1
V. Comments for CVE-2026-33451
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