VulnerabilityModified
CVE-2021-42577
A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.
HIGH 7.5EPSS 0.96%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.96% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- softing/datafeed opc suite · softing/opc ua c\+\+ software development kit · softing/secure integration server
- Source
- cve@mitre.org
References
- https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-42577.pdfVendor Advisory
- https://softing.comVendor Advisory
- https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-42577.pdfVendor Advisory
- https://softing.comVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.