Open62541 vulnerabilities

2 known vulnerabilities in Open62541 from o6 Automation. 2 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 8.1 High severity

  open62541: Use After Free

  CVE-2026-63035Jul 30, 2026o6 Automation

  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.

• 7.5 High severity

  open62541: Integer Overflow or Wraparound

  CVE-2026-63559Jul 30, 2026o6 Automation

  An integer overflow in the UA_Variant arrayDimensions product computation in open62541 may allow a remote attacker to read out-of-bounds heap memory, potentially disclosing sensitive information.