CVE-2026-63035CWE-416

CVE-2026-63035

High · published July 31, 2026

CVSS v3.1

8.1

EPSS

1%

Percentile

54.6

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v3.1: 8.1 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0: Not supplied
EPSS: 0.00755 · 54.6th percentile
Weakness: CWE-416 · Use After Free
Published: 2026-07-31T03:16Z

References (7)

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-08.json · [email protected]https://github.com/open62541/open62541/pull/8235/commits/b666d35769ce63998442e4d0810a3fb10b50179f · [email protected]https://github.com/open62541/open62541/pull/8236/commits/06b99fef667c8ec5bdf0605b4f00c84fcc1d3a60 · [email protected]https://github.com/open62541/open62541/pull/8237/commits/1b71d9c5d9c4d02d4729b8903a52e9f530bf804e · [email protected]https://github.com/open62541/open62541/pull/8238/commits/afab4107bfd161da9ce8bb30ed77f3968c9c97df · [email protected]https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-08 · [email protected]https://www.o6-automation.com/contact · [email protected]

EPSS history

Timeline

30 JUL 21:56Z
o6 Automation open62541 Use After Free
cvelistv5