Not ratedosv:RLSA-2026:98588

    Moderate: openssl security, bug fix, and enhancement update

    Published Sources: OSV

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    What is affected, what to do

    The available sources name no fixed version. Check the vendor guidance and the linked original advisory.

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    Metrics

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    XIEM Effective CVSS

    No value is available for this vulnerability.

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    CVSS v3

    No value is available for this vulnerability.

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    EPSS score

    No value is available for this vulnerability.

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    Severity
    Not rated
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

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    30.00 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

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    no public PoC known
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

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    Published

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

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    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

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    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

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    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

    Security Fix(es):

    • openssl: openssl: Denial of Service via excessive memory allocation in CRL distribution point processing (CVE-2026-35189)

    • openssl: openssl: Denial of Service via excessive QUIC packet buffer retention (CVE-2026-54873)

    • openssl: openssl: Denial of Service via crafted CMP certificate revocation response (CVE-2026-75805)

    • openssl: openssl: Denial of Service via inefficient QUIC stream reassembly (CVE-2026-42772)

    • openssl: OpenSSL: Private key recovery via timing side-channel in generic elliptic curve operations (CVE-2026-54872)

    • openssl: OpenSSL: Denial of Service via unenforced QUIC connection flow control (CVE-2026-75804)

    • openssl: openssl: information disclosure via non-constant-time SM2 scalar multiplication on ARM64 and RISC-V (CVE-2026-54875)

    • openssl: openssl: Traffic amplification Denial of Service via QUIC packet over-accounting (CVE-2026-35191)

    • openssl: OpenSSL: Private key recovery via SM2 timing side-channel (CVE-2026-77696)

    • openssl: openssl: Denial of Service via out-of-bounds write during TLS context switch (CVE-2026-72897)

    • openssl: OpenSSL: Denial of Service via undersized DTLS record (CVE-2026-75806)

    • openssl: OpenSSL: Denial of Service via unbounded QUIC connection identifier backlog (CVE-2026-84784)

    Bug Fix(es) and Enhancement(s):

    • [Rocky Linux 10.3]OpenSSL silently uses default provider when fips.so is missing on systems in FIPS mode (JIRA:Rocky Linux-213740)

    • OpenSSL fails to initialize when automatic initialization happens in threads (JIRA:Rocky Linux-252344)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    Source: OSV (Open Source Vulnerabilities)