o6 Automation GmbH vulnerabilities
Published CVEs affecting o6 Automation GmbH products: 5 record(s), with severity, exploitation and fixes.
CVE-2026-65423
High · 8.8
CWE-190 Jul 30, 2026
o6 Automation open62541 Integer Overflow or Wraparound
An integer overflow in the UA_Variant arrayDimensions product
computation in open62541 may allow a remote attacker to trigger an
out-of-bounds write.
CVE-2026-63362
Medium · 5.9
CWE-191 Jul 30, 2026
o6 Automation open62541 Integer Underflow
An unsigned integer underflow in the PubSub signature verification path
in open62541 may allow a remote attacker to cause a denial of service
via a crafted UDP packet.
CVE-2026-63035
High · 8.1
CWE-416 Jul 30, 2026
o6 Automation open62541 Use After Free
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.
CVE-2026-63559
High · 7.5
CWE-190 Jul 30, 2026
o6 Automation open62541 Integer Overflow or Wraparound
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.
CVE-2026-1301
Medium · 6.8
CWE-787 Feb 5, 2026
Out-of-bounds Write in o6 Automation GmbH Open62541
In builds with PubSub and JSON enabled, a crafted JSON message can cause the decoder to write beyond a heap-allocated array before authentication, reliably crashing the process and corrupting memory.