TI-2025-14560 Aliases CVE-2025-20262 GHSA-3q92-5vpf-96pw

Cisco Nexus 3000 and 9000 Series Switches Protocol Independent Multicast Version 6 Denial of Service Vulnerability

LOW 23CWE-476Published 2025-08-27 · Updated 2025-08-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

A vulnerability in the Protocol Independent Multicast Version 6 (PIM6) feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an authenticated, low-privileged, remote attacker to trigger a crash of the PIM6 process, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of PIM6 ephemeral data queries. An attacker could exploit this vulnerability by sending a crafted ephemeral query to an affected device through one of the following methods: NX-API REST, NETCONF, RESTConf, gRPC, or Model Driven Telemetry. A successful exploit could allow the attacker to cause the PIM6 process to crash and restart, causing potential adjacency flaps and resulting in a DoS of the PIM6 and ephemeral query processes.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00352 29th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco NX-OS Software	9.2(3); 9.2(2v); 9.2(1); 9.2(2t); 9.2(3y); 9.3(2); 9.2(4); 9.3(1); 9.3(1z); 9.2(2); 9.3(3); 9.3(4); 9.3(5); 9.3(6); 10.1(2); 10.1(1); 9.3(5w); 9.3(7); 9.3(7k); 10.2(1); 9.3(7a); 9.3(8); 10.2(1q); 10.2(2); 9.3(9); 10.1(2t); 10.2(3); 10.2(3t); 9.3(10); 10.2(2a); 10.3(1); 10.2(4); 10.3(2); 9.3(11); 10.3(3); 10.2(5); 9.3(12); 10.2(3v); 10.4(1); 10.3(99w); 10.2(6); 10.3(3w); 10.3(99x); 10.3(3o); 10.3(4); 10.3(3p); 10.3(4a); 10.4(2); 10.3(3q); 9.3(13); 10.3(5); 10.2(7); 10.4(3); 10.3(3x); 10.3(4g); 10.5(1); 10.2(8); 10.3(3r); 10.3(6); 9.3(14); 10.4(4); 10.3(4h); 10.5(2); 10.4(4g)	—	No fix listed	CNA

Cisco NX-OS Software VendorCisco Affected 9.2(3); 9.2(2v); 9.2(1); 9.2(2t); 9.2(3y); 9.3(2); 9.2(4); 9.3(1); 9.3(1z); 9.2(2); 9.3(3); 9.3(4); 9.3(5); 9.3(6); 10.1(2); 10.1(1); 9.3(5w); 9.3(7); 9.3(7k); 10.2(1); 9.3(7a); 9.3(8); 10.2(1q); 10.2(2); 9.3(9); 10.1(2t); 10.2(3); 10.2(3t); 9.3(10); 10.2(2a); 10.3(1); 10.2(4); 10.3(2); 9.3(11); 10.3(3); 10.2(5); 9.3(12); 10.2(3v); 10.4(1); 10.3(99w); 10.2(6); 10.3(3w); 10.3(99x); 10.3(3o); 10.3(4); 10.3(3p); 10.3(4a); 10.4(2); 10.3(3q); 9.3(13); 10.3(5); 10.2(7); 10.4(3); 10.3(3x); 10.3(4g); 10.5(1); 10.2(8); 10.3(3r); 10.3(6); 9.3(14); 10.4(4); 10.3(4h); 10.5(2); 10.4(4g) Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:nx-os::::::::	—	—	Cisco

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* Versions — — ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-20262
2026-10-03 Alias added: GHSA-3q92-5vpf-96pw

References

Other 1

cisco-sa-nxospc-pim6-vG4jFPh

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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences