CVE-2026-27459

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

March 23, 2026

Last Seen

June 4, 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 Buffer Overflow Vulnerability in pyOpenSSL Requires Immediate Action75.8

A critical buffer overflow vulnerability (CVE-2026-27459) in pyOpenSSL was published on March 17, 2026. This vulnerability affects systems using pyOpenSSL and is linked to a DTLS cookie callback buffer overflow. The updates released include pyOpenSSL version 26.0.0 and python-cryptography version 46...

Critical pyOpenSSL Vulnerabilities Affect Ubuntu Users70.5

Two vulnerabilities were discovered in pyOpenSSL, affecting Ubuntu 24.04 LTS and 25.10. CVE-2026-27448 allows connections to be accepted after an exception in the tlsext_servername callback, contrary to expectations. CVE-2026-27459 involves improper handling of DTLS cookie generation, where attacker...

Critical Vulnerabilities in SUSE Multi-Linux Manager Affecting Denial of Service70.5

SUSE has issued multiple important updates addressing critical vulnerabilities in the Multi-Linux Manager and Salt software. The vulnerabilities, identified as CVE-2026-31958, CVE-2026-27448, and CVE-2026-27459, could lead to denial of service and buffer overflow attacks. CVE-2026-31958, published o...

SUSE Multi-Linux Manager Faces Denial of Service Vulnerabilities57.8

SUSE has issued multiple security updates addressing denial of service vulnerabilities in its Multi-Linux Manager. The primary issue is CVE-2022-21698, which affects various components including prometheus-postgres_exporter and golang-github-QubitProducts-exporter_exporter. This vulnerability allows...