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TI-2024-13252 Aliases CVE-2024-20318GHSA-6hgv-w8jj-jm2j

Improper input validation in Cisco IOS XR Software

Priority LOW 32CWE-20Published · Updated

Key facts

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

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

Summary

A vulnerability in the Layer 2 Ethernet services of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the line card network processor to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of specific Ethernet frames that are received on line cards that have the Layer 2 services feature enabled. An attacker could exploit this vulnerability by sending specific Ethernet frames through an affected device. A successful exploit could allow the attacker to cause the ingress interface network processor to reset, resulting in a loss of traffic over the interfaces that are supported by the network processor. Multiple resets of the network processor would cause the line card to reset, resulting in a DoS condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00328 26th 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
CiscoCisco IOS XR Software6.5.2; 6.5.3; 6.6.2; 6.6.3; 6.6.25; 7.0.1; 7.0.2; 7.1.1; 7.1.15; 7.1.2; 7.1.3; 6.7.1; 6.7.2; 6.7.3; 7.3.1; 7.3.2; 7.3.3; 7.3.5; 7.4.1; 7.4.2; 6.8.1; 6.8.2; 7.5.1; 7.5.3; 7.5.2; 7.5.4; 7.5.5; 7.6.1; 7.6.2; 7.7.1; 7.7.2; 6.9.1; 6.9.2; 7.8.1; 7.8.2; 7.9.1—No fix listedCNA
  • Cisco IOS XR Software VendorCisco Affected 6.5.2; 6.5.3; 6.6.2; 6.6.3; 6.6.25; 7.0.1; 7.0.2; 7.1.1; 7.1.15; 7.1.2; 7.1.3; 6.7.1; 6.7.2; 6.7.3; 7.3.1; 7.3.2; 7.3.3; 7.3.5; 7.4.1; 7.4.2; 6.8.1; 6.8.2; 7.5.1; 7.5.3; 7.5.2; 7.5.4; 7.5.5; 7.6.1; 7.6.2; 7.7.1; 7.7.2; 6.9.1; 6.9.2; 7.8.1; 7.8.2; 7.9.1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

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

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*——Cisco
  • cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* Versions — — ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-20318
  2. 2026-10-03 Alias added: GHSA-6hgv-w8jj-jm2j

References

Other 1

  • TI-2026-74174 Arbitrary file write in Cisco Secure Email Gateway via AMP feature KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53490 Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53489 Cisco Secure Email Gateway SQL Injection Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16388 Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
See all 7059 →

Sources

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