Riskcovery

CVE-2026-82623

open62541 History Backend ua_history_data_backend_memory.c UA_DataValue_backend_copyRange use after free

State
Published
Severity
6.9 Medium
Published
Aug 31, 2026
Updated
Aug 31, 2026
Reserved
Aug 30, 2026

Read the record on cve.org

Description

A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UA_DataValue_backend_copyRange of the file plugins/historydata/ua_history_data_backend_memory.c of the component History Backend. The manipulation results in use after free. The attack can be launched remotely. The exploit is now public and may be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:PVulDB
3.15.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:RVulDB
3.05.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:RVulDB
2.05.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:URVulDB

Weaknesses

Affected Products

ProductVersions
open62541n/a
  • 1.5.0Affected
  • 1.5.1Affected
  • 1.5.2Affected
  • 1.5.3Affected
  • 1.5.4Affected
  • 1.5.5Affected

References

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