CVE catalog
CVE-2026-116014
DEBIAN-CVE-2026-116014
- Severity
- Unknown · CVSS 9.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.43% · Oct 25, 2026
open62541 1.5.0 before 1.5.7 contains an integer overflow in UA_DataType_fromStructureDescription() that wraps the 16-bit memSize field for large custom structure definitions. A malicious OPC UA server can supply DataType definitions via UA_Client_getRemoteDataTypes(), causing decodeBinaryStructure() to overflow the heap, crashing clients or enabling code execution.
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 |
| Ubuntu | open62541 | 26.10 | 1.4.11.1-1build1 | vulnerable |
| Ubuntu | open62541 | 26.10 | 1.4.18-1 | vulnerable |
| Ubuntu | open62541 | 26.04 | 1.4.11.1-1 | vulnerable |
| Ubuntu | open62541 | 26.04 | 1.4.11.1-1build1 | 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/open62541/open62541/blob/v1.5.6/src/ua_types_definition.c#L274]
- [https://github.com/open62541/open62541/commit/0cf4806768c493bc6ccffcd4419da24153b970ec]
- [https://github.com/open62541/open62541/pull/8298]
- [https://github.com/open62541/open62541/pull/8302]
- [https://github.com/open62541/open62541/releases/tag/v1.5.7]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-116014]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-116014]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-116014]
- [https://www.vulncheck.com/advisories/open62541-1.5.0-before-1.5.7-integer-overflow-heap-buffer-overflow-via-custom-datatype]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]