Vulnerability · Published Oct 28, 2022 · Assigned by icscert

CVE-2022-41648

Critical 9.2

In plain English

A critical-severity security flaw in HEIDENHAIN Controller TNC 640 NC Software from HEIDENHAIN. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).

Severity (CVSS 4.0)9.2Critical

Exploit odds (30 days)0.9%top 41.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The HEIDENHAIN Controller TNC 640 NC software Version 340590 07 SP5, is vulnerable to improper authentication in its DNC communication for CNC machines. Authentication is not enabled by default for DNC communication. This vulnerability may allow an attacker to deny service on the production line, steal sensitive data from the production line, and alter any products created by the production line. Note: CNC machines running the TNC 640 controller require DNC to be enabled for DNC communication to be present.

Affected products (as reported)

Vendor	Product	Versions
HEIDENHAIN	HEIDENHAIN Controller TNC 640 NC Software	340590 07 SP5

Weakness: CWE-1188 · Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://www.cisa.gov/news-events/ics-advisories/icsa-22-298-02 government-resource
https://www.cisa.gov/uscert/ics/advisories/icsa-22-298-02 x_transferred