CVE-2026-40253

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

August 27, 2026

Last Seen

August 27, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical Vulnerabilities in openCryptoki Affecting Ubuntu Systems57.9

Two significant vulnerabilities were discovered in openCryptoki, a PKCS#11 Cryptographic Token Interface implementation. CVE-2026-40253 involves integer underflows that could lead to out-of-bounds reads, while CVE-2026-23893 allows privilege escalation through improper symlink handling. Both vulnera...