01 Record
CVE-2026-82619
Systerel S2OPC subscription_mgr.c use after free
MediumPUBLISHEDCNA: VulDB
CNA base score5.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
02 Description
Systerel S2OPC subscription_mgr.c use after free
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.53% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 44.7% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-31 05:15Z1 MO AGO
- Last updated
- 2026-08-31 15:45Z1 MO AGO
- Reserved
- 2026-08-30
- Assigning CNA
- VulDB
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
- Weaknesses
- Data version
- 5.2
- Document digest
- 2596025fe029ff735152129aeaff7757c011f057eb53722aae41bfbed22c5247
05 Affected products
VendorProductVersionsPlatforms
06 References
- vuldb.comVDB-397119 | Systerel S2OPC subscription_mgr.c use after freehttps://vuldb.com/vuln/397119
- vuldb.comVDB-397119 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/397119/cti
- vuldb.comCVE-2026-82619 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-82619
- vuldb.comSubmit #893148 | Systerel S2OPC OPC UA Toolkit 1.7.3 Heap Use After Freehttps://vuldb.com/submit/893148
- gitlab.comhttps://gitlab.com/systerel/S2OPC/-/work_items/1797
- gitlab.comhttps://gitlab.com/systerel/S2OPC/-/merge_requests/1839
- gitlab.comhttps://gitlab.com/systerel/S2OPC/-/commit/a4cee16a851b971be447a6ed531173702c722b99