
CVE catalog
CVE-2026-63035
DEBIAN-CVE-2026-63035
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.76% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | open62541 | 13 | 1.4.11.1-1 | vulnerable |
| Debian | open62541 | 13 | 1.4.18-1 | vulnerable |
| Debian | open62541 | 14 | 1.4.11.1-1 | vulnerable |
| Debian | open62541 | 14 | 1.4.18-1 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [libopen62541-1.4]Affected
Source package: [open62541]
Details (2)
1.4.11.1-1· amd64 · trixieAffected
pypi · open62541 · debian · 13
1.4.11.1-1· arm64 · trixieAffected
pypi · open62541 · debian · 13
- [libopen62541-1.4-dev]Affected
Source package: [open62541]
Details (2)
1.4.11.1-1· amd64 · trixieAffected
pypi · open62541 · debian · 13
1.4.11.1-1· arm64 · trixieAffected
pypi · open62541 · debian · 13
- [libopen62541-1.4-tools]Affected
Source package: [open62541]
Details (2)
1.4.11.1-1· all · trixieAffected
pypi · open62541 · debian · 13
1.4.11.1-1· all · trixieAffected
pypi · open62541 · debian · 13
Observed:
References
- [https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-08.json]
- [https://github.com/open62541/open62541/pull/8235/commits/b666d35769ce63998442e4d0810a3fb10b50179f]
- [https://github.com/open62541/open62541/pull/8236/commits/06b99fef667c8ec5bdf0605b4f00c84fcc1d3a60]
- [https://github.com/open62541/open62541/pull/8237/commits/1b71d9c5d9c4d02d4729b8903a52e9f530bf804e]
- [https://github.com/open62541/open62541/pull/8238/commits/afab4107bfd161da9ce8bb30ed77f3968c9c97df]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-63035]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-63035]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63035.json]
- [https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-08]
- [https://www.o6-automation.com/contact]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]