Critical severity · published Aug 20, 2026
CVE-2026-77644
Critical Bypass Access Control Vulnerability Reported for Windchill Risk and Reliability (WRR) Enterprise Edition
9.3
CVSS
0.4%
EPSS
No
On KEV
Description
A critical bypass access control vulnerability has been reported in PTC Windchill Risk and Reliability (WRR) Enterprise Edition.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WR
Windchill Risk and Reliability Enterprise Edition (Formerly Relex) · PTC
11.1 through 13.1 · source: vendor
Affected product
WR
Windchill Risk and Reliability Enterprise Edition (Formerly Relex)
PTC