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CVE-2024-20390

MEDIUM
Published 2024-09-11T16:38:15.320Z
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Expert Analysis

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CVSS Score

V3.1
5.3
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.439
Higher than 43.9% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
LOW

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Cisco

Cisco IOS XR Software

Affected Versions:

6.5.3 6.5.29 6.5.1 6.6.1 6.5.2 6.5.92 6.5.15 6.6.2 7.0.1 6.6.25 6.5.26 6.6.11 6.5.25 6.5.28 6.5.93 6.6.12 6.5.90 7.0.0 7.1.1 7.0.90 6.6.3 6.7.1 7.0.2 7.1.15 7.2.0 7.2.1 7.1.2 6.7.2 7.0.11 7.0.12 7.0.14 7.1.25 6.6.4 7.2.12 7.3.1 7.1.3 6.7.3 7.4.1 7.2.2 6.7.4 6.5.31 7.3.15 7.3.16 6.8.1 7.4.15 6.5.32 7.3.2 7.5.1 7.4.16 7.3.27 7.6.1 7.5.2 7.8.1 7.6.15 7.5.12 7.8.12 7.3.3 7.7.1 6.8.2 7.3.4 7.4.2 6.7.35 6.9.1 7.6.2 7.5.3 7.7.2 6.9.2 7.9.1 7.10.1 7.8.2 7.5.4 6.5.33 7.8.22 7.7.21 7.9.2 7.3.5 7.5.5 7.11.1 7.9.21 7.10.2 24.1.1 7.6.3 7.3.6 7.5.52 7.11.2 24.2.1
cisco

ios_xr_software

Affected Versions:

6.5.3 24.2.1

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-4pqw-cgvq-97j3

Advisory Details

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.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-20390
WEB https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-xml-tcpdos-ZEXvrU2S

Advisory provided by GitHub Security Advisory Database. Published: September 11, 2024, Modified: September 11, 2024

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-xml-tcpdos-ZEXvrU2S
Published: 2024-09-11T16:38:15.320Z
Last Modified: 2024-09-11T20:53:46.046Z
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