CVE-2026-20033
CVE-2026-20033: 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.
Vendor advisory comparison
Cisco
1 advisory- Advisory severityHigh7.4
High [CVE-2026-20033] Cisco Nexus 9000 Series Fabric Switches in ACI Mode Denial of Service Vulnerability
cisco-sa-nxos-cpdos-qLsv6pFDSource published Source updated
A vulnerability in Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation when processing specific Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to the management interface of an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition. Note: Only the out-of-band (OOB) management interface is affe…
- Related products — impact not confirmed
- Cisco NX-OS System Software in ACI Mode 15.2(1g)
- Cisco NX-OS System Software in ACI Mode 15.2(2e)
- Cisco NX-OS System Software in ACI Mode 15.2(2f)
- Cisco NX-OS System Software in ACI Mode 15.2(2g)
5 more entries in the full advisory.
- Source-reported affected versions
- Scope: This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI mode if they have a configured and active OOB management interface.
- 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 this vulnerability.
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