Vulnerability Description
A heap use-after-free vulnerability in the TransferSubscriptions service in open62541 may allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code.
CVSS Score
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Related Weaknesses (CWE)
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-21
- https://github.com/open62541/open62541/pull/8235/commits/b666d35769ce63998442e4d
- https://github.com/open62541/open62541/pull/8236/commits/06b99fef667c8ec5bdf0605
- https://github.com/open62541/open62541/pull/8237/commits/1b71d9c5d9c4d02d4729b89
- https://github.com/open62541/open62541/pull/8238/commits/afab4107bfd161da9ce8bb3
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-08
- https://www.o6-automation.com/contact
FAQ
What is CVE-2026-63035?
CVE-2026-63035 is a vulnerability with a CVSS score of 8.1 (HIGH). A heap use-after-free vulnerability in the TransferSubscriptions service in open62541 may allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code.
How severe is CVE-2026-63035?
CVE-2026-63035 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63035?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.