CVE-2026-67864

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service...

7.5 High

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.76%Up 0.5 points since Aug 6, 2026

What each source reports

CVE List Score used 7.5

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Record: CVE-2026-67864
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

EUVDEUVD-2026-53673 7.5

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Record: EUVD-2026-53673
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-5xh2-h93h-x38x 7.5

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service...

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Record: GHSA-5xh2-h93h-x38x
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

NVD 7.5

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Record: CVE-2026-67864
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

OSV 7.5

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Record: CVE-2026-67864
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-67864 7.5

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Record: DEBIAN-CVE-2026-67864
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-67864 7.5

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

Record: UBUNTU-CVE-2026-67864
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`open62541` Debian:13	All versions, plus listed versions 1.4.11.1-11.4.18-1	None known
`open62541` Debian:14	All versions, plus listed versions 1.4.11.1-11.4.18-1	None known
`open62541` Ubuntu:26.10	All versions, plus listed versions 1.4.11.1-1build11.4.18-1	None known
`open62541` Ubuntu:26.04:LTS	All versions, plus listed versions 1.4.11.1-11.4.11.1-1build1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-67864 is a high vulnerability (CVSS 7.5) in open62541, published August 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. No source names a fixed version.

References

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