CVE-2024-20319

Published Mar 13, 2024 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

A vulnerability in the UDP forwarding code of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to bypass configured management plane protection policies and access the Simple Network Management Plane (SNMP) server of an affected device.

This vulnerability is due to incorrect UDP forwarding programming when using SNMP with management plane protection. An attacker could exploit this vulnerability by attempting to perform an SNMP operation using broadcast as the destination address that could be processed by an affected device that is configured with an SNMP server. A successful exploit could allow the attacker to communicate to the device on the configured SNMP ports. Although an unauthenticated attacker could send UDP datagrams to the configured SNMP port, only an authenticated user can retrieve or modify data using SNMP requests.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco IOS XR Software

affected

Version	Status	Constraints
`5.2.0`	affected	—
`5.2.1`	affected	—
`5.2.2`	affected	—
`5.2.4`	affected	—
`5.2.3`	affected	—
`5.2.5`	affected	—
`5.2.47`	affected	—
`5.3.0`	affected	—
`5.3.1`	affected	—
`5.3.2`	affected	—
`5.3.3`	affected	—
`5.3.4`	affected	—
`6.0.0`	affected	—
`6.0.1`	affected	—
`6.0.2`	affected	—
`6.1.1`	affected	—
`6.1.2`	affected	—
`6.1.3`	affected	—
`6.1.4`	affected	—
`6.1.12`	affected	—
`6.1.22`	affected	—
`6.1.32`	affected	—
`6.1.36`	affected	—
`6.1.42`	affected	—
`6.2.1`	affected	—
`6.2.2`	affected	—
`6.2.3`	affected	—
`6.2.25`	affected	—
`6.2.11`	affected	—
`6.3.2`	affected	—
`6.3.3`	affected	—
`6.3.15`	affected	—
`6.4.1`	affected	—
`6.4.2`	affected	—
`6.4.3`	affected	—
`6.5.1`	affected	—
`6.5.2`	affected	—
`6.5.3`	affected	—
`6.5.25`	affected	—
`6.5.26`	affected	—
`6.5.28`	affected	—
`6.5.29`	affected	—
`6.5.32`	affected	—
`6.5.33`	affected	—
`6.6.2`	affected	—
`6.6.3`	affected	—
`6.6.25`	affected	—
`6.6.4`	affected	—
`7.0.1`	affected	—
`7.0.2`	affected	—
`7.0.12`	affected	—
`7.0.14`	affected	—
`7.1.1`	affected	—
`7.1.15`	affected	—
`7.1.2`	affected	—
`7.1.3`	affected	—
`6.7.1`	affected	—
`6.7.2`	affected	—
`6.7.3`	affected	—
`6.7.4`	affected	—
`7.2.0`	affected	—
`7.2.1`	affected	—
`7.2.2`	affected	—
`7.3.1`	affected	—
`7.3.15`	affected	—
`7.3.2`	affected	—
`7.3.3`	affected	—
`7.3.5`	affected	—
`7.3.6`	affected	—
`7.4.1`	affected	—
`7.4.2`	affected	—
`6.8.1`	affected	—
`6.8.2`	affected	—
`7.5.1`	affected	—
`7.5.3`	affected	—
`7.5.2`	affected	—
`7.5.4`	affected	—
`7.5.5`	affected	—
`7.6.1`	affected	—
`7.6.2`	affected	—
`7.7.1`	affected	—
`7.7.2`	affected	—
`7.7.21`	affected	—
`6.9.1`	affected	—
`6.9.2`	affected	—
`7.8.1`	affected	—
`7.8.2`	affected	—
`7.9.1`	affected	—
`7.9.2`	affected	—
`7.9.21`	affected	—
`7.10.1`	affected	—
`7.10.2`	affected	—
`7.11.1`	affected	—

Configuration 1 [-]

OR	cpe:2.3:o:cisco:ios_xr:5.2.0:::::::*
	cpe:2.3:o:cisco:ios_xr:5.2.1:::::::*
	cpe:2.3:o:cisco:ios_xr:5.2.2:::::::*
	cpe:2.3:o:cisco:ios_xr:5.2.3:::::::*
	cpe:2.3:o:cisco:ios_xr:5.2.4:::::::*
	cpe:2.3:o:cisco:ios_xr:5.2.5:::::::*
	cpe:2.3:o:cisco:ios_xr:5.2.47:::::::*
	cpe:2.3:o:cisco:ios_xr:5.3.0:::::::*
	cpe:2.3:o:cisco:ios_xr:5.3.1:::::::*
	cpe:2.3:o:cisco:ios_xr:5.3.2:::::::*
	cpe:2.3:o:cisco:ios_xr:5.3.3:::::::*
	cpe:2.3:o:cisco:ios_xr:5.3.4:::::::*
	cpe:2.3:o:cisco:ios_xr:6.0.0:::::::*
	cpe:2.3:o:cisco:ios_xr:6.0.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.0.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.3:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.4:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.12:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.22:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.32:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.36:::::::*
	cpe:2.3:o:cisco:ios_xr:6.1.42:::::::*
	cpe:2.3:o:cisco:ios_xr:6.2.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.2.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.2.3:::::::*
	cpe:2.3:o:cisco:ios_xr:6.2.11:::::::*
	cpe:2.3:o:cisco:ios_xr:6.2.25:::::::*
	cpe:2.3:o:cisco:ios_xr:6.3.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.3.3:::::::*
	cpe:2.3:o:cisco:ios_xr:6.3.15:::::::*
	cpe:2.3:o:cisco:ios_xr:6.4.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.4.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.4.3:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.3:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.25:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.26:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.28:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.29:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.32:::::::*
	cpe:2.3:o:cisco:ios_xr:6.5.33:::::::*
	cpe:2.3:o:cisco:ios_xr:6.6.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.6.3:::::::*
	cpe:2.3:o:cisco:ios_xr:6.6.4:::::::*
	cpe:2.3:o:cisco:ios_xr:6.6.25:::::::*
	cpe:2.3:o:cisco:ios_xr:6.7.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.7.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.7.3:::::::*
	cpe:2.3:o:cisco:ios_xr:6.7.4:::::::*
	cpe:2.3:o:cisco:ios_xr:6.8.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.8.2:::::::*
	cpe:2.3:o:cisco:ios_xr:6.9.1:::::::*
	cpe:2.3:o:cisco:ios_xr:6.9.2:::::::*
	cpe:2.3:o:cisco:ios_xr:7.0.1:::::::*
	cpe:2.3:o:cisco:ios_xr:7.0.2:::::::*
	cpe:2.3:o:cisco:ios_xr:7.0.12:::::::*
	cpe:2.3:o:cisco:ios_xr:7.0.14:::::::*
	cpe:2.3:o:cisco:ios_xr:7.1.1:::::::*
	cpe:2.3:o:cisco:ios_xr:7.1.2:::::::*
	cpe:2.3:o:cisco:ios_xr:7.1.3:::::::*
	cpe:2.3:o:cisco:ios_xr:7.1.15:::::::*
cpe:2.3:o:cisco:ios_xr:7.2.0:::::::*
cpe:2.3:o:cisco:ios_xr:7.2.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.2.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.3.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.3.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.3.3:::::::*
cpe:2.3:o:cisco:ios_xr:7.3.5:::::::*
cpe:2.3:o:cisco:ios_xr:7.3.6:::::::*
cpe:2.3:o:cisco:ios_xr:7.3.15:::::::*
cpe:2.3:o:cisco:ios_xr:7.4.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.4.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.5.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.5.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.5.3:::::::*
cpe:2.3:o:cisco:ios_xr:7.5.4:::::::*
cpe:2.3:o:cisco:ios_xr:7.5.5:::::::*
cpe:2.3:o:cisco:ios_xr:7.6.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.6.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.7.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.7.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.7.21:::::::*
cpe:2.3:o:cisco:ios_xr:7.8.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.8.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.9.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.9.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.9.21:::::::*
cpe:2.3:o:cisco:ios_xr:7.10.1:::::::*
cpe:2.3:o:cisco:ios_xr:7.10.2:::::::*
cpe:2.3:o:cisco:ios_xr:7.11.1:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2024-18034	A vulnerability in the UDP forwarding code of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to bypass configured management plane protection policies and access the Simple Network Management Plane (SNMP) server of an affected device. This vulnerability is due to incorrect UDP forwarding programming when using SNMP with management plane protection. An attacker could exploit this vulnerability by attempting to perform an SNMP operation using broadcast as the destination address that could be processed by an affected device that is configured with an SNMP server. A successful exploit could allow the attacker to communicate to the device on the configured SNMP ports. Although an unauthenticated attacker could send UDP datagrams to the configured SNMP port, only an authenticated user can retrieve or modify data using SNMP requests.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.250% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-uhv6ZDeF

History

Jul 7, 2025 4:15 PM First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco ios Xr
Weaknesses		NVD-CWE-noinfo
CPEs		cpe:2.3:o:cisco:ios_xr:5.2.0:::::::* cpe:2.3:o:cisco:ios_xr:5.2.1:::::::* cpe:2.3:o:cisco:ios_xr:5.2.2:::::::* cpe:2.3:o:cisco:ios_xr:5.2.3:::::::* cpe:2.3:o:cisco:ios_xr:5.2.47:::::::* cpe:2.3:o:cisco:ios_xr:5.2.4:::::::* cpe:2.3:o:cisco:ios_xr:5.2.5:::::::* cpe:2.3:o:cisco:ios_xr:5.3.0:::::::* cpe:2.3:o:cisco:ios_xr:5.3.1:::::::* cpe:2.3:o:cisco:ios_xr:5.3.2:::::::* cpe:2.3:o:cisco:ios_xr:5.3.3:::::::* cpe:2.3:o:cisco:ios_xr:5.3.4:::::::* cpe:2.3:o:cisco:ios_xr:6.0.0:::::::* cpe:2.3:o:cisco:ios_xr:6.0.1:::::::* cpe:2.3:o:cisco:ios_xr:6.0.2:::::::* cpe:2.3:o:cisco:ios_xr:6.1.12:::::::* cpe:2.3:o:cisco:ios_xr:6.1.1:::::::* cpe:2.3:o:cisco:ios_xr:6.1.22:::::::* cpe:2.3:o:cisco:ios_xr:6.1.2:::::::* cpe:2.3:o:cisco:ios_xr:6.1.32:::::::* cpe:2.3:o:cisco:ios_xr:6.1.36:::::::* cpe:2.3:o:cisco:ios_xr:6.1.3:::::::* cpe:2.3:o:cisco:ios_xr:6.1.42:::::::* cpe:2.3:o:cisco:ios_xr:6.1.4:::::::* cpe:2.3:o:cisco:ios_xr:6.2.11:::::::* cpe:2.3:o:cisco:ios_xr:6.2.1:::::::* cpe:2.3:o:cisco:ios_xr:6.2.25:::::::* cpe:2.3:o:cisco:ios_xr:6.2.2:::::::* cpe:2.3:o:cisco:ios_xr:6.2.3:::::::* cpe:2.3:o:cisco:ios_xr:6.3.15:::::::* cpe:2.3:o:cisco:ios_xr:6.3.2:::::::* cpe:2.3:o:cisco:ios_xr:6.3.3:::::::* cpe:2.3:o:cisco:ios_xr:6.4.1:::::::* cpe:2.3:o:cisco:ios_xr:6.4.2:::::::* cpe:2.3:o:cisco:ios_xr:6.4.3:::::::* cpe:2.3:o:cisco:ios_xr:6.5.1:::::::* cpe:2.3:o:cisco:ios_xr:6.5.25:::::::* cpe:2.3:o:cisco:ios_xr:6.5.26:::::::* cpe:2.3:o:cisco:ios_xr:6.5.28:::::::* cpe:2.3:o:cisco:ios_xr:6.5.29:::::::* cpe:2.3:o:cisco:ios_xr:6.5.2:::::::* cpe:2.3:o:cisco:ios_xr:6.5.32:::::::* cpe:2.3:o:cisco:ios_xr:6.5.33:::::::* cpe:2.3:o:cisco:ios_xr:6.5.3:::::::* cpe:2.3:o:cisco:ios_xr:6.6.25:::::::* cpe:2.3:o:cisco:ios_xr:6.6.2:::::::* cpe:2.3:o:cisco:ios_xr:6.6.3:::::::* cpe:2.3:o:cisco:ios_xr:6.6.4:::::::* cpe:2.3:o:cisco:ios_xr:6.7.1:::::::* cpe:2.3:o:cisco:ios_xr:6.7.2:::::::* cpe:2.3:o:cisco:ios_xr:6.7.3:::::::* cpe:2.3:o:cisco:ios_xr:6.7.4:::::::* cpe:2.3:o:cisco:ios_xr:6.8.1:::::::* cpe:2.3:o:cisco:ios_xr:6.8.2:::::::* cpe:2.3:o:cisco:ios_xr:6.9.1:::::::* cpe:2.3:o:cisco:ios_xr:6.9.2:::::::* cpe:2.3:o:cisco:ios_xr:7.0.12:::::::* cpe:2.3:o:cisco:ios_xr:7.0.14:::::::* cpe:2.3:o:cisco:ios_xr:7.0.1:::::::* cpe:2.3:o:cisco:ios_xr:7.0.2:::::::* cpe:2.3:o:cisco:ios_xr:7.1.15:::::::* cpe:2.3:o:cisco:ios_xr:7.1.1:::::::* cpe:2.3:o:cisco:ios_xr:7.1.2:::::::* cpe:2.3:o:cisco:ios_xr:7.1.3:::::::* cpe:2.3:o:cisco:ios_xr:7.10.1:::::::* cpe:2.3:o:cisco:ios_xr:7.10.2:::::::* cpe:2.3:o:cisco:ios_xr:7.11.1:::::::* cpe:2.3:o:cisco:ios_xr:7.2.0:::::::* cpe:2.3:o:cisco:ios_xr:7.2.1:::::::* cpe:2.3:o:cisco:ios_xr:7.2.2:::::::* cpe:2.3:o:cisco:ios_xr:7.3.15:::::::* cpe:2.3:o:cisco:ios_xr:7.3.1:::::::* cpe:2.3:o:cisco:ios_xr:7.3.2:::::::* cpe:2.3:o:cisco:ios_xr:7.3.3:::::::* cpe:2.3:o:cisco:ios_xr:7.3.5:::::::* cpe:2.3:o:cisco:ios_xr:7.3.6:::::::* cpe:2.3:o:cisco:ios_xr:7.4.1:::::::* cpe:2.3:o:cisco:ios_xr:7.4.2:::::::* cpe:2.3:o:cisco:ios_xr:7.5.1:::::::* cpe:2.3:o:cisco:ios_xr:7.5.2:::::::* cpe:2.3:o:cisco:ios_xr:7.5.3:::::::* cpe:2.3:o:cisco:ios_xr:7.5.4:::::::* cpe:2.3:o:cisco:ios_xr:7.5.5:::::::* cpe:2.3:o:cisco:ios_xr:7.6.1:::::::* cpe:2.3:o:cisco:ios_xr:7.6.2:::::::* cpe:2.3:o:cisco:ios_xr:7.7.1:::::::* cpe:2.3:o:cisco:ios_xr:7.7.21:::::::* cpe:2.3:o:cisco:ios_xr:7.7.2:::::::* cpe:2.3:o:cisco:ios_xr:7.8.1:::::::* cpe:2.3:o:cisco:ios_xr:7.8.2:::::::* cpe:2.3:o:cisco:ios_xr:7.9.1:::::::* cpe:2.3:o:cisco:ios_xr:7.9.21:::::::* cpe:2.3:o:cisco:ios_xr:7.9.2:::::::*
Vendors & Products		Cisco Cisco ios Xr