CVE-2026-67869
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of...
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
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
What each source reports
CVE List Score used
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
- Record
CVE-2026-67869- CVSS 3.1
- 7.5 High
CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2026-53682
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
- Record
EUVD-2026-53682- CVSS 3.1
- 7.5 High
CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-86h5-5qfw-5vr9
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of...
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
- Record
GHSA-86h5-5qfw-5vr9- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
- Record
CVE-2026-67869- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-67869
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
- Record
DEBIAN-CVE-2026-67869- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-67869
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
- Record
UBUNTU-CVE-2026-67869- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
open62541Debian:13 |
All versions, plus listed versions 1.4.11.1-11.4.18-1 |
None known |
open62541Debian:14 |
All versions, plus listed versions 1.4.11.1-11.4.18-1 |
None known |
open62541Ubuntu:26.10 |
All versions, plus listed versions 1.4.11.1-1build11.4.18-1 |
None known |
open62541Ubuntu:26.04:LTS |
All versions, plus listed versions 1.4.11.1-11.4.11.1-1build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-67869 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 0.82%, the 57th percentile. No source names a fixed version.
References
github.com/open62541/open62541/issues/8171
nvd.nist.gov/vuln/detail/CVE-2026-67869
security-tracker.debian.org/tracker/CVE-2026-67869
ubuntu.com/security/CVE-2026-67869
cve.org/CVERecord?id=CVE-2026-67869