TI-2013-04699 Aliases CVE-2013-5503 GHSA-rcf2-qf65-j8cp

The UDP process in Cisco IOS XR 4.3.1 does not free packet memory upon detecting full…

LOW 37CWE-399Published 2013-10-02 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Complete
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

The UDP process in Cisco IOS XR 4.3.1 does not free packet memory upon detecting full packet queues, which allows remote attackers to cause a denial of service (memory consumption) via UDP packets to listening ports, aka Bug ID CSCue69413.

Why it matters now

EPSS 0.01328 71st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:ios_xr:4.3.1:::::::*	4.3.1	Vulnerable	Cisco

cpe:2.3:o:cisco:ios_xr:4.3.1:*:*:*:*:*:*:* Versions 4.3.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2013-5503
2026-10-03 Alias added: GHSA-rcf2-qf65-j8cp

References

Advisory 1

20131002 Cisco IOS XR Software Memory Exhaustion Vulnerability

TI-2020-02680 Cisco IOS XR Software Cisco Discovery Protocol Format String Vulnerability KEVCVSS 3.1HIGH 8.8
TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
TI-2020-03113 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities KEVCVSS 3.1HIGH 8.6
TI-2020-03110 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability KEVCVSS 3.1HIGH 8.6
TI-2018-00142 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.0
TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5

See all 199 →

Sources

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