Description
S2OPC 1.7.3 contains an out-of-bounds read in RepublishResponse handling. This allows a remote attacker to cause a denial of service
References6
- github.com/systerel/S2OPC/blob/S2OPC_Toolkit_1.7.3/src/ClientSe…
- github.com/systerel/S2OPC/blob/S2OPC_Toolkit_1.7.3/src/ClientSe…
- github.com/systerel/S2OPC/blob/S2OPC_Toolkit_1.7.3/src/Common/o…
- github.com/systerel/S2OPC/blob/S2OPC_Toolkit_1.7.3/tests/Client…
- gitlab.com/systerel/S2OPC/-/work_items/1785
- gitlab.com/systerel/S2OPC/-/work_items/1785
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: 56 · as of 13 November 2026
- CWE
- CWE-125
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.