Description
open62541 contains a heap use-after-free in the GDS PushManagement certificate update workflow when UA_ENABLE_GDS_PUSHMANAGEMENT is enabled. This allows a remote attacker to cause a denial of service.
References7
- github.com/open62541/open62541
- github.com/open62541/open62541/blob/master/arch/posix/eventloop…
- github.com/open62541/open62541/blob/master/examples/encryption/…
- github.com/open62541/open62541/blob/master/src/server/ua_server…
- github.com/open62541/open62541/blob/master/src/server/ua_server…
- github.com/open62541/open62541/issues/8093
- github.com/open62541/open62541/issues/8093
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 44 · as of 13 November 2026
- CWE
- CWE-400
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.