4.3

CVE-2024-20319: cisco cisco ios xr software Improper Access Control

CVSS: 4.3v3.1MediumAnalyzed
Published 13-03-2024Last modified 01-08-2024
Open JSON

Vulnerability summary

CVE-2024-20319 is a medium (CVSS 4.3) Improper Access Control vulnerability in cisco cisco ios xr software. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.2% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-03-2024
    PublishedVulnerability first disclosed.
  2. 01-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.25% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco ios xr software5.2.0 | 5.2.1 | 5.2.2 | 5.2.4 | 5.2.3 | 5.2.5 | 5.2.47 | 5.3.0 | 5.3.1 | 5.3.2 | 5.3.3 | 5.3.4 | 6.0.0 | 6.0.1 | 6.0.2 | 6.1.1 | 6.1.2 | 6.1.3 | 6.1.4 | 6.1.12 | 6.1.22 | 6.1.32 | 6.1.36 | 6.1.42 | 6.2.1 | 6.2.2 | 6.2.3 | 6.2.25 | 6.2.11 | 6.3.2 | 6.3.3 | 6.3.15 | 6.4.1 | 6.4.2 | 6.4.3 | 6.5.1 | 6.5.2 | 6.5.3 | 6.5.25 | 6.5.26 | 6.5.28 | 6.5.29 | 6.5.32 | 6.5.33 | 6.6.2 | 6.6.3 | 6.6.25 | 6.6.4 | 7.0.1 | 7.0.2 | 7.0.12 | 7.0.14 | 7.1.1 | 7.1.15 | 7.1.2 | 7.1.3 | 6.7.1 | 6.7.2 | 6.7.3 | 6.7.4 | 7.2.0 | 7.2.1 | 7.2.2 | 7.3.1 | 7.3.15 | 7.3.2 | 7.3.3 | 7.3.5 | 7.3.6 | 7.4.1 | 7.4.2 | 6.8.1 | 6.8.2 | 7.5.1 | 7.5.3 | 7.5.2 | 7.5.4 | 7.5.5 | 7.6.1 | 7.6.2 | 7.7.1 | 7.7.2 | 7.7.21 | 6.9.1 | 6.9.2 | 7.8.1 | 7.8.2 | 7.9.1 | 7.9.2 | 7.9.21 | 7.10.1 | 7.10.2 | 7.11.1
  • ios_xr5.2.0 | 5.2.1 | 5.2.2 | 5.2.3 | 5.2.4 | 5.2.5 | 5.2.47 | 5.3.0 | 5.3.1 | 5.3.2 | 5.3.3 | 5.3.4 | 6.0.0 | 6.0.1 | 6.0.2 | 6.1.1 | 6.1.2 | 6.1.3 | 6.1.4 | 6.1.12 | 6.1.22 | 6.1.32 | 6.1.36 | 6.1.42 | 6.2.1 | 6.2.2 | 6.2.3 | 6.2.11 | 6.2.25 | 6.3.2 | 6.3.3 | 6.3.15 | 6.4.1 | 6.4.2 | 6.4.3 | 6.5.1 | 6.5.2 | 6.5.3 | 6.5.25 | 6.5.26 | 6.5.28 | 6.5.29 | 6.5.32 | 6.5.33 | 6.6.2 | 6.6.3 | 6.6.4 | 6.6.25 | 6.7.1 | 6.7.2 | 6.7.3 | 6.7.4 | 6.8.1 | 6.8.2 | 6.9.1 | 6.9.2 | 7.0.1 | 7.0.2 | 7.0.12 | 7.0.14 | 7.1.1 | 7.1.2 | 7.1.3 | 7.1.15 | 7.2.0 | 7.2.1 | 7.2.2 | 7.3.1 | 7.3.2 | 7.3.3 | 7.3.5 | 7.3.6 | 7.3.15 | 7.4.1 | 7.4.2 | 7.5.1 | 7.5.2 | 7.5.3 | 7.5.4 | 7.5.5 | 7.6.1 | 7.6.2 | 7.7.1 | 7.7.2 | 7.7.21 | 7.8.1 | 7.8.2 | 7.9.1 | 7.9.2 | 7.9.21 | 7.10.1 | 7.10.2 | 7.11.1

1 vendor · 2 products

References

1 links