CVE-2026-67862

highCVSS 7.5covered by 1 sourcefirst seen 2026-08-04

open62541 1.5.5 contains a buffer-overflow in the high-level attribute reading logic in src/client/ua_client_highlevel.c. This allows a remote attacker to cause a denial of service.

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Exploitation outlook

Low exploitation risk0.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-67862: open62541 1.5.5 contains a buffer-overflow in the high-level attribute reading logic in src/cl…nvd · 2026-08-04

External references

NVD record for CVE-2026-67862

CVE.org record

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