Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-34527— Sandboxie-Plus EditPassword hash entropy reduced from 160 bits to 80 bits due to incorrect nibble extraction

Quick assessment

Affected
sandboxie-plus Sandboxie
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.

Sandboxie-Plus是Sandboxie-Plus公司的一款沙盒隔离软件。 Sandboxie-Plus 1.17.2及之前版本存在安全漏洞，该漏洞源于HashPassword函数将SHA-1摘要转换为十六进制时错误地将高半字节右移8位而非4位，导致有效熵从160位降至80位，使得密码哈希更容易被暴力破解。

AI Predicted 5.3 Difficulty: Easy EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 1

VendorProduct Version RangeStatus
sandboxie-plus Sandboxie < 1.17.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-34527

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Sandboxie-Plus EditPassword hash entropy reduced from 160 bits to 80 bits due to incorrect nibble extraction
Source: CVE Program / CVE List V5
Vulnerability Description
Sandboxie-Plus is an open source sandbox-based isolation software for Windows. In versions 1.17.2 and earlier, SbieIniServer::HashPassword converts a SHA-1 digest to hexadecimal incorrectly. The high nibble of each byte is shifted right by 8 instead of 4, which always produces zero for an 8-bit value. As a result, the stored EditPassword hash only preserves the low nibble of each digest byte, reducing the effective entropy from 160 bits to 80 bits. This is layered on top of an unsalted SHA-1 scheme. The reduced entropy makes leaked or backed-up password hashes materially easier to brute-force. This issue has been fixed in version 1.17.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
可逆的单向哈希
Source: CVE Program / CVE List V5
Vulnerability Title
Sandboxie-Plus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sandboxie-Plus是Sandboxie-Plus公司的一款沙盒隔离软件。 Sandboxie-Plus 1.17.2及之前版本存在安全漏洞，该漏洞源于HashPassword函数将SHA-1摘要转换为十六进制时错误地将高半字节右移8位而非4位，导致有效熵从160位降至80位，使得密码哈希更容易被暴力破解。
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
sandboxie-plus Sandboxie < 1.17.3 -

II. Public POCs for CVE-2026-34527

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-34527

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-34527 (1)

Same Patch Batch · sandboxie-plus · 2026-05-05 · 8 CVEs total

CVE-2026-32603 Sandboxie kernel driver denial of service via malformed IOCTL from sandboxed process
CVE-2026-34596 Sandboxie-Plus local privilege escalation via TOCTOU race condition in UpdUtil addon insta
CVE-2026-34462 Sandboxie-Plus ProcessServer boxname stack buffer overflows via unterminated wide string c
CVE-2026-34458 Sandboxie-Plus privilege escalation via INI CRLF injection bypassing EditAdminOnly
CVE-2026-34459 Sandboxie-Plus sandbox escape via uninitialized memory leak and stack overflow in GetRawIn
CVE-2026-34464 Sandboxie-Plus NamedPipeServer OpenHandler stack overflow via unterminated server field
CVE-2026-34461 Sandboxie-Plus SbieIniServer RunSbieCtrl stack buffer overflow allows local privilege esca

IV. Related Vulnerabilities

Same product: Sandboxie
Same vendor: sandboxie-plus
Same weakness: CWE-328

V. Comments for CVE-2026-34527

No comments yet

Leave a comment