CVE-2024-20390

Cisco IOS XR Software Dedicated XML Agent TCP Denial of Service Vulnerability

Published Sep 11, 2024 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
A vulnerability in the Dedicated XML Agent feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on XML TCP listen port 38751.

This vulnerability is due to a lack of proper error validation of ingress XML packets. An attacker could exploit this vulnerability by sending a sustained, crafted stream of XML traffic to a targeted device. A successful exploit could allow the attacker to cause XML TCP port 38751 to become unreachable while the attack traffic persists.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-18105 A vulnerability in the Dedicated XML Agent feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on XML TCP listen port 38751. This vulnerability is due to a lack of proper error validation of ingress XML packets. An attacker could exploit this vulnerability by sending a sustained, crafted stream of XML traffic to a targeted device. A successful exploit could allow the attacker to cause XML TCP port 38751 to become unreachable while the attack traffic persists.
History
Type Values Removed Values Added
First Time appeared Cisco ios Xr
Weaknesses NVD-CWE-Other
CPEs cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
Vendors & Products Cisco ios Xr
Type Values Removed Values Added
First Time appeared Cisco
Cisco ios Xr Software
CPEs cpe:2.3:o:cisco:ios_xr_software:-:*:*:*:*:*:*:*
Vendors & Products Cisco
Cisco ios Xr Software
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A vulnerability in the Dedicated XML Agent feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on XML TCP listen port 38751. This vulnerability is due to a lack of proper error validation of ingress XML packets. An attacker could exploit this vulnerability by sending a sustained, crafted stream of XML traffic to a targeted device. A successful exploit could allow the attacker to cause XML TCP port 38751 to become unreachable while the attack traffic persists.
Title Cisco IOS XR Software Dedicated XML Agent TCP Denial of Service Vulnerability
Weaknesses CWE-940
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Sep 11, 2024, 8:53 PM
Reserved
Nov 8, 2023, 3:08 PM
Status
Analyzed
Published
Sep 11, 2024, 5:15 PM
Modified
Jun 17, 2026, 7:06 AM