What’s Vulnerable › Vulnerabilities

CVE-2026-67862

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-04 · updated 2026-08-31
• Weakness: CWE-400

Description

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.

References

• https://github.com/open62541/open62541/blob/v1.5.5/src/client/ua_client_highlevel.c
• https://github.com/open62541/open62541/issues/8139
• https://github.com/open62541/open62541/issues/8139

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