CVE-2024-20464

highpriority · track · 34EPSS 0.006 · 47 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.57% (47th) EPSS

CVSS 8.6 · high

Is it mine?

10 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A vulnerability in the Protocol Independent Multicast (PIM) feature of 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 insufficient validation of received IPv4 PIMv2 packets. An attacker could exploit this vulnerability by sending a crafted PIMv2 packet to a PIM-enabled interface on an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Note: This vulnerability can be exploited with either an IPv4 multicast or unicast packet.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixed17.13.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
Fixed17.13.1acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technical severity, 0–10. One row per scoring source.

8.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 4

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · psirt@cisco.com USexploitability 3.9 · impact 4

v3.17.9highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · Cisco PSIRT US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20US

affected products (10)

Products and version ranges known to be affected.

Cisco IOS XEall versionscert_bundDEcpe:/o:cisco:ios_xe:-
Cisco 17.13.1all versionscisco_csafUS
Cisco 17.13.1aall versionscisco_csafUS
Cisco Cisco IOS XE Software≤ 17.13.1aenisa_euvdEU
Cisco Cisco IOS XE Software≤ 17.13.1enisa_euvdEU
Cisco Systems Inc. Cisco IOS XE≤ 17.12.1z2fstec_bduRU
Cisco Systems Inc. Cisco IOS XE≤ 17.13.1afstec_bduRU
Cisco Systems Inc. Cisco IOS XE≤ 17.13.1fstec_bduRU
cisco ios xe= 17.13.1nvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
cisco ios xe= 17.13.1anvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-2221Cisco IOS XE: Mehrere SchwachstellenDeutsch2024-09-25csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Cisco IOS XE ausnutzen, um einen Denial of Service Angriff durchzuführen, die Zugriffskontrollliste (ACL) vor der Authentifizierung zu umgehen oder Daten zu manipulieren.
cisco-sa-pim-APbVfySJCisco IOS XE Software Protocol Independent Multicast Denial of Service Vulnerability2024-09-25csaf · cisco_csafUS
A vulnerability in the Protocol Independent Multicast (PIM) feature of 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 insufficient validation of received IPv4 PIMv2 packets. An attacker could exploit this vulnerability by sending a crafted PIMv2 packet to a PIM-enabled interface on an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Note: This vulnerability can be exploited with either an IPv4 multicast or unicast packet. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the September 2024 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2024 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75169"].

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund cisco_csaf nvd NVD CVE.org MITRE

published 2024-09-25modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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