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Highest advisory severityCritical 1 vendor · 1 advisory

CVE-2026-20340

CVE-2026-20340: 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.

NVD detail CVE.org

Vendor advisory comparison

Cisco

1 advisory
  • Advisory severityCritical9.1

    Critical [CVE-2026-20340 +4] Cisco Secure Firewall Management Center Software Vulnerabilities

    cisco-sa-fmc-mulivulns-4PsnFwvxSource published Source updated

    This bulletin covers 5 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

    Multiple vulnerabilities in Cisco Secure Firewall Management Center (FMC) Software could allow a remote attacker to gain root access, download sensitive files, perform a SQL injection attack, or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of September 16, 2026, Security Advisories. In addition, for further documentation of improvements and fixes in Cisco Secure Firewall products, see Cisco Secure Firewall Adaptive…

    Affected products in this advisory
    • Secure Firewall Management Center (FMC) Appliances
    Source-reported affected versions
    • Scope: CVE-2026-20341: This vulnerability affects Cisco Secure FMC Software, regardless of device configuration. The attacker must have root access on a managed Cisco Firepower Threat Defense (FTD) device.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Workarounds
    • There are no workarounds that address these vulnerabilities.
    Full advisory and evidenceOpen source bulletin

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