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CVE-2024-20433

HIGHCVSS 7.5/10EPSS 0.64%

Last modified

CVE-2024-20433 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the Resource Reservation Protocol (RSVP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow when processing crafted RSVP packets. An attacker could exploit this vulnerability by sending RSVP traffic to an affected device. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

A vulnerability in the Resource Reservation Protocol (RSVP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow when processing crafted RSVP packets. An attacker could exploit this vulnerability by sending RSVP traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.64%

45.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos12.0\(24\)s
CiscoIos12.0\(24\)s1
CiscoIos12.0\(24\)s2
CiscoIos12.0\(24\)s2a
CiscoIos12.0\(24\)s2b
CiscoIos12.0\(24\)s3
CiscoIos12.0\(24\)s4
CiscoIos12.0\(24\)s4a
CiscoIos12.0\(24\)s5
CiscoIos12.0\(24\)s6
CiscoIos12.0\(25\)s
CiscoIos12.0\(25\)s1
CiscoIos12.0\(25\)s1a
CiscoIos12.0\(25\)s1b
CiscoIos12.0\(25\)s1c
CiscoIos12.0\(25\)s1d
CiscoIos12.0\(25\)s2
CiscoIos12.0\(25\)s3
CiscoIos12.0\(25\)s4
CiscoIos12.0\(25\)sx
CiscoIos12.0\(25\)sx1
CiscoIos12.0\(25\)sx2
CiscoIos12.0\(25\)sx3
CiscoIos12.0\(25\)sx4
CiscoIos12.0\(25\)sx5
CiscoIos12.0\(25\)sx6
CiscoIos12.0\(25\)sx6e
CiscoIos12.0\(25\)sx7
CiscoIos12.0\(25\)sx8
CiscoIos12.0\(25\)sx9
CiscoIos12.0\(25\)sx10
CiscoIos12.0\(26\)s
CiscoIos12.0\(26\)s1
CiscoIos12.0\(26\)s2
CiscoIos12.0\(26\)s3
CiscoIos12.0\(26\)s4
CiscoIos12.0\(26\)s5
CiscoIos12.0\(26\)s6
CiscoIos12.0\(27\)s
CiscoIos12.0\(27\)s1
CiscoIos12.0\(27\)s2
CiscoIos12.0\(27\)s3
CiscoIos12.0\(27\)s4
CiscoIos12.0\(27\)s5
CiscoIos12.0\(28\)s
CiscoIos12.0\(28\)s1
CiscoIos12.0\(28\)s2
CiscoIos12.0\(28\)s3
CiscoIos12.0\(28\)s4
CiscoIos12.0\(28\)s5

Showing 50 of 2434 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20433?
A vulnerability in the Resource Reservation Protocol (RSVP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow when processing crafted RSVP packets. An attacker could exploit this vulnerability by sending RSVP traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
How severe is CVE-2024-20433?
CVE-2024-20433 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20433?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-20433?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST