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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-81574— Format String Vulnerability in Logger

Quick assessment

Affected
wibu-systems-ag codemeter-runtime
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.

WIBU-SYSTEMS CodeMeter Runtime是德国WIBU-SYSTEMS公司的一款软件加密与授权管理运行时组件。 WIBU-SYSTEMS CodeMeter Runtime 8.41a之前版本和9.10之前版本存在格式化字符串错误漏洞，该漏洞源于日志记录器未对输入字符串进行清理，导致攻击者可以注入printf格式说明符，从而可能导致CodeMeter崩溃并泄露进程内存和栈金丝雀等敏感信息。

CVSS 8.2 · High EPSS 0.43% · P37

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
wibu-systems-ag codemeter-runtime 9.00< 9.10 affected
8.00< 8.41a affected
7.00 affected
6.00 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-81574

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Format String Vulnerability in Logger
Source: CVE Program / CVE List V5
Vulnerability Description
In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases, allowing an attacker to inject printf-style format specifiers. This can be used to reliably crash CodeMeter and disclose sensitive information such as process memory and stack canaries. The attack works locally, for example by using cmu --set-proxy to set the proxy value, and remotely when combined with CVE-2026-81573 by setting General.ProxyServer and then triggering this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部控制的格式字符串
Source: CVE Program / CVE List V5
Vulnerability Title
WIBU-SYSTEMS CodeMeter Runtime 格式化字符串错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WIBU-SYSTEMS CodeMeter Runtime是德国WIBU-SYSTEMS公司的一款软件加密与授权管理运行时组件。 WIBU-SYSTEMS CodeMeter Runtime 8.41a之前版本和9.10之前版本存在格式化字符串错误漏洞，该漏洞源于日志记录器未对输入字符串进行清理，导致攻击者可以注入printf格式说明符，从而可能导致CodeMeter崩溃并泄露进程内存和栈金丝雀等敏感信息。
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
wibu-systems-ag codemeter-runtime 9.00 ~ 9.10 -

II. Public POCs for CVE-2026-81574

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-81574

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-81574 (1)

Same Patch Batch · wibu-systems-ag · 2026-08-27 · 7 CVEs total

CVE-2026-81581 8.8 HIGH User input in WibuKey is used (without proper sanitization) to compute the address of a po
CVE-2026-81579 8.8 HIGH An untrusted Pointer Dereference can be exploited to escalate privileges by an unprivilege
CVE-2026-81573 8.6 HIGH Improper Access Control in Local-Only Configuration Commands
CVE-2026-81572 7.8 HIGH Local Privilege Escalation in CodeMeter Runtime on Windows
CVE-2026-81576 7.7 HIGH Improper Authentication of Session Handles
CVE-2026-81575 7.5 HIGH Missing Sanity Checks for Buffer Lengths

IV. Related Vulnerabilities

Same product: codemeter-runtime
Same vendor: wibu-systems-ag
Same weakness: CWE-134