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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-20339

CVE-2026-20339: 1 tracked advisory record across Cisco. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Cisco

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-20337 +6] ClamAV Vulnerabilities Affecting Cisco Products: August 2026

    cisco-sa-clamav-WuuvVd26Source published Source updated

    This bulletin covers 7 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

    Multiple vulnerabilities in ClamAV could allow a remote attacker to cause a denial of service (DoS) condition, interrupting scanning operations. For more information about these vulnerabilities, see the Details section of this advisory. For additional information on these vulnerabilities in ClamAV, see the ClamAV blog. Cisco has released software updates that address these vulnerabilities in affected Cisco platforms. There are no workarounds that address these vulnerabilities. Notes: - The Security Impact Rating (SIR) for these vulnerabilities is High for Windows-based platforms only because those platforms run the ClamAV scanning process in a privileged security context. The platforms that are highly impacted include Cisco Secure Endpoint Connector for Windows. - The SIR for these…

    Affected products in this advisory
    • Secure Endpoint
    Source-reported affected versions
    • Secure Endpoint Connector for Linux (first fixed release: 1.29.21)
    • Secure Endpoint Connector for Mac (first fixed release: 1.27.41)
    • Secure Endpoint Connector for Windows (first fixed release: 8.6.31)
    • 7.5.24.217801 (first fixed release: CSCwv91588)
    Source-reported fixed versions
    • Secure Endpoint Connector for Linux — 1.29.21
    • Secure Endpoint Connector for Mac — 1.27.41
    • Secure Endpoint Connector for Windows — 8.6.31
    • 7.5.24.217801 — CSCwv91588
    Mitigation guidance
    • Upgrade to the first fixed release listed for each affected Cisco product.
    • Secure Endpoint Connector for Linux: upgrade to 1.29.21.
    • Secure Endpoint Connector for Mac: upgrade to 1.27.41.
    • Secure Endpoint Connector for Windows: upgrade to 8.6.31.

    1 more entries in the full advisory.

    Workarounds
    • There are no workarounds that address these vulnerabilities.
    Full advisory and evidenceOpen source bulletin

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