CVE-2026-81572Disclosure

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

In CodeMeter Runtime from version 8.40 to (excluding) 8.41a and 9.00 to (excluding) 9.10, cmu.exe --create-io --file C: creates a predictable temporary file under C:\CM-Stick. The directory and file paths are not properly checked for NTFS reparse points, such as junctions or symbolic links, before file operations are performed. A local attacker can create a junction at the temporary file that points to an arbitrary system path. Because CodeMeter Runtime runs with System privileges, this could allow arbitrary files to be deleted with System privileges and potentially enable local privilege escalation.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-59

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://www.valtersit.com/cve/CVE-2026-81572/

Full discourse1 post

Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters46d
Disclosure
CVE-2026-81572 - LPE in CodeMeter Runtime allows arbitrary file deletion with SYSTEM privileges via NTFS reparse points. CVSS 7.8. Audit hosts now. #CVE #infosec #cybersecurity https://www.valtersit.com/cve/CVE-2026-81572/ #CVE #CVEAlert #infosec #SysAdmin #cybersecurity #Linux #devsecops #devops #developer #sysadmin #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #ethicalhacking #cybersecurityawareness #cybersecurity #cybersecuritynews #cybersecuritytips #python #hacker #linux #kali #ubuntu #debian #ukraine #spain #ireland #unitedkingdom #canada #finland #estonia #lithuania #ireland #hungary #denmark #norway #malta #mexico #switczerland #china #france #germany #docker
Post summary
The post announces CVE‑2026‑81572, providing technical details on an LPE that enables arbitrary file deletion via NTFS reparse points, and urges hosts to audit—no exploitation code or active use is reported.
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