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TI-2024-13392 Aliases CVE-2024-20467GHSA-5q3p-266j-pj8x

Resource management flaw in Cisco IOS XE Software

Priority MEDIUM 45CWE-399Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

A vulnerability in the implementation of the IPv4 fragmentation reassembly code in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper management of resources during fragment reassembly. An attacker could exploit this vulnerability by sending specific sizes of fragmented packets to an affected device or through a Virtual Fragmentation Reassembly (VFR)-enabled interface on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: This vulnerability affects Cisco ASR 1000 Series Aggregation Services Routers and Cisco cBR-8 Converged Broadband Routers if they are running Cisco IOS XE Software Release 17.12.1 or 17.12.1a.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0098 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
Yes
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 XE Software17.12.1; 17.12.1a; 17.11.99SW—No fix listedCNA
  • Cisco IOS XE Software VendorCisco Affected 17.12.1; 17.12.1a; 17.11.99SW Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:17.11.99sw:*:*:*:*:*:*:*17.11.99swVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.12.1:*:*:*:*:*:*:*17.12.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.12.1a:*:*:*:*:*:*:*17.12.1aVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:17.11.99sw:*:*:*:*:*:*:* Versions 17.11.99sw Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.12.1:*:*:*:*:*:*:* Versions 17.12.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.12.1a:*:*:*:*:*:*:* Versions 17.12.1a Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-20467
  2. 2026-10-03 Alias added: GHSA-5q3p-266j-pj8x

References

Advisory 1

  • TI-2023-06904 Cisco is providing an update for the ongoing investigation into observed exploitation of… KEVCVSS 3.1CRITICAL 10.0
  • TI-2018-00122 Memory corruption in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04497 Memory corruption in Cisco IOS XE Software KEVCVSS 3.1HIGH 8.8
See all 561 →

Sources

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