What is CVE-2021-42577?

CVE-2021-42577 is a high-severity vulnerability in Softing Datafeed_opc_suite, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-03-11.

How severe is CVE-2021-42577?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Softing Datafeed_opc_suite

CVE-2021-42577

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.

EPSS: 0.009 (57.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Softing Datafeed_opc_suite
Softing Opc_ua_c\+\+_software_development_kit
Softing Secure_integration_server
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-42577?: CVE-2021-42577 is a high-severity vulnerability in Softing Datafeed_opc_suite, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-03-11.
How severe is CVE-2021-42577?: High severity. CVSS v3 base score is 7.5 out of 10.