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TI-2025-16831 Aliases CVE-2025-23019GHSA-qpjx-9hp9-85gm

IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and route traffic via an exposed network interface.

Priority LOW 31CWE-940Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoof and route traffic via an exposed network interface.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0099 62nd 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

VendorProductAffected versionsFixed inStatusSource
IETFIPv66—No fix listedCNA
  • IPv6 VendorIETF Affected 6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ietf:ipv6:-:*:*:*:*:*:*:*not specified by NVDVulnerableIETF
  • cpe:2.3:a:ietf:ipv6:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·IETF

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-23019
  2. 2026-10-03 Alias added: GHSA-qpjx-9hp9-85gm

References

Other 3

  • TI-2016-08218 An issue was discovered in the IPv6 protocol specification, related to ICMP Packet Too… CVSS 3.0HIGH 8.6
  • TI-2007-02160 The IPv6 protocol allows remote attackers to cause a denial of service via crafted IPv6… CVSS 2.0HIGH 7.8
  • TI-2025-16830 Improper verification of communication channel in IETF IPv6 CVSS 3.1MEDIUM 6.5

Sources

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