// For flags

CVE-2024-20304

Cisco IOS XR Software Packet Memory Exhaustion Vulnerability

Severity Score

8.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the multicast traceroute version 2 (Mtrace2) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust the UDP packet memory of an affected device.

This vulnerability exists because the Mtrace2 code does not properly handle packet memory. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to exhaust the incoming UDP packet memory. The affected device would not be able to process higher-level UDP-based protocols packets, possibly causing a denial of service (DoS) condition.
Note: This vulnerability can be exploited using IPv4 or IPv6.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-11-08 CVE Reserved
  • 2024-09-11 CVE Published
  • 2024-09-11 CVE Updated
  • 2024-10-04 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
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Cisco IOS XR Software
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7.8.1
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.8.1"
en
Affected
Cisco
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Cisco IOS XR Software
Search vendor "Cisco" for product "Cisco IOS XR Software"
7.8.12
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.8.12"
en
Affected
Cisco
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Cisco IOS XR Software
Search vendor "Cisco" for product "Cisco IOS XR Software"
7.7.1
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.7.1"
en
Affected
Cisco
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Cisco IOS XR Software
Search vendor "Cisco" for product "Cisco IOS XR Software"
7.7.2
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.7.2"
en
Affected
Cisco
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Cisco IOS XR Software
Search vendor "Cisco" for product "Cisco IOS XR Software"
7.9.1
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.9.1"
en
Affected
Cisco
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Cisco IOS XR Software
Search vendor "Cisco" for product "Cisco IOS XR Software"
7.10.1
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.10.1"
en
Affected
Cisco
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Cisco IOS XR Software
Search vendor "Cisco" for product "Cisco IOS XR Software"
7.8.2
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en
Affected
Cisco
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Cisco IOS XR Software
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7.8.22
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en
Affected
Cisco
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Cisco IOS XR Software
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7.7.21
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.7.21"
en
Affected
Cisco
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Cisco IOS XR Software
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7.9.2
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en
Affected
Cisco
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Cisco IOS XR Software
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7.11.1
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en
Affected
Cisco
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Cisco IOS XR Software
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7.9.21
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.9.21"
en
Affected
Cisco
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Cisco IOS XR Software
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7.10.2
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en
Affected
Cisco
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Cisco IOS XR Software
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24.1.1
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en
Affected
Cisco
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Cisco IOS XR Software
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7.11.2
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "7.11.2"
en
Affected
Cisco
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Cisco IOS XR Software
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24.2.1
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "24.2.1"
en
Affected
Cisco
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Cisco IOS XR Software
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24.1.2
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "24.1.2"
en
Affected
Cisco
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Cisco IOS XR Software
Search vendor "Cisco" for product "Cisco IOS XR Software"
24.2.11
Search vendor "Cisco" for product "Cisco IOS XR Software" and version "24.2.11"
en
Affected