CI
Product
Cisco IOS XR Software
by Cisco · last CVE Oct 21, 2026
On CISA KEVExploited in the wild
62
CVEs
4
On KEV
9.8
Max CVSS
1
New 30D
Severity mix
Critical 3High 35Medium 24Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2022-20821
In wildKEV
6.5
11%
May 26
Cisco IOS XR Software Health Check Open Port Vulnerability
Affected: All versions, or not specified
CVE-2026-20118
6.8
0%
Mar 11
Cisco IOS-XR NCS 5500 and NCS 5700 Egress Packet Network Interfaces Aligner Interrupt Denial of Service Vulnerability
Affected: 7.9.1; 7.10.1; 7.9.2; 7.11.1; 7.10.2; 24.1.1; +17 more
CVE-2021-1440
6.8
1%
Nov 18
Cisco IOS XR Software BGP Resource Public Key Infrastructure Denial of Service Vulnerability
Affected: 6.6.1; 6.5.3; 7.0.1; 6.6.11; 6.5.1; 6.5.2; +15 more
CVE-2025-20177
6.7
0%
Mar 12
Cisco IOS XR Software Image Verification Bypass Vulnerability
Affected: 7.0.1; 7.0.0; 7.1.1; 7.0.90; 6.7.1; 7.0.2; +34 more
CVE-2025-20143
6.7
0%
Mar 12
Cisco IOS XR Software Secure Boot Bypass Vulnerability
Affected: 6.5.3; 6.5.2; 6.5.92; 6.5.1; 6.5.15; 6.6.2; +34 more
CVE-2024-20456
6.7
0%
Jul 10
A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Cisco Secure Boot functionality and…
Affected: 24.2.1
CVE-2024-20262
6.5
0%
Mar 13
A vulnerability in the Secure Copy Protocol (SCP) and SFTP feature of Cisco IOS XR Software could allow an authenticated, local attacker to create or overwrite files in a system…
Affected: 5.2.0; 5.2.1; 5.2.2; 5.2.4; 5.2.3; 5.2.5; +34 more
CVE-2023-20233
6.5
0%
Sep 13
A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS)…
Affected: 5.2.0; 5.2.1; 5.2.2; 5.2.4; 5.2.3; 5.2.5; +34 more
CVE-2022-20849
6.1
0%
Nov 15
Cisco IOS XR Software Broadband Network Gateway PPPoE Denial of Service Vulnerability
Affected: 6.5.3; 6.6.1; 6.5.15; 7.0.1; 6.6.25; 6.6.2; +27 more
CVE-2025-20248
6.0
0%
Sep 10
Cisco IOS XR Software Image Verification Bypass Vulnerability
Affected: 6.5.3; 6.5.29; 6.5.1; 6.6.1; 6.5.2; 6.5.92; +34 more
CVE-2022-20845
6.0
0%
Nov 15
Cisco Network Convergence System 4000 Series TL1 Denial of Service Vulnerability
Affected: 6.5.29; 6.5.26; 6.5.25; 6.5.28; 6.5.31; 6.5.32
CVE-2025-20145
5.8
0%
Mar 12
Cisco IOS XR Software Access Control List Bypass Vulnerability
Affected: 6.5.3; 6.5.2; 6.5.92; 6.5.1; 6.6.2; 7.0.1; +34 more
CVE-2025-20144
5.8
0%
Mar 12
Cisco IOS XR Software Access Control List Bypass Vulnerability
Affected: 6.5.3; 6.5.2; 6.5.92; 6.5.1; 6.6.2; 7.0.1; +34 more
CVE-2024-20315
5.8
1%
Mar 13
A vulnerability in the access control list (ACL) processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to…
Affected: 7.9.1; 7.9.2; 7.10.1
CVE-2024-20322
5.8
0%
Mar 13
A vulnerability in the access control list (ACL) processing on Pseudowire interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote…
Affected: 7.10.2; 7.11.1
CVE-2024-20489
5.5
0%
Sep 11
Cisco Routed Passive Optical Network Cleartext Password Vulnerability
Affected: 24.1.1; 24.2.1; 24.1.2; 24.2.11; 24.3.1
CVE-2024-20343
5.5
0%
Sep 11
Cisco IOS XR Software CLI Arbitrary File Read Vulnerability
Affected: 6.5.3; 6.6.1; 6.5.2; 6.5.92; 6.5.1; 6.5.15; +34 more
CVE-2025-20159
5.3
0%
Sep 10
Cisco IOS XR Software Management Interface ACL Bypass Vulnerability
Affected: 6.6.1; 6.5.3; 7.0.1; 6.6.11; 6.5.1; 6.5.2; +34 more
CVE-2024-20390
5.3
0%
Sep 11
Cisco IOS XR Software Dedicated XML Agent TCP Denial of Service Vulnerability
Affected: 6.5.3; 6.5.29; 6.5.1; 6.6.1; 6.5.2; 6.5.92; +34 more
CVE-2024-20266
5.3
1%
Mar 13
A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process,…
Affected: 5.2.0; 5.2.1; 5.2.2; 5.2.4; 5.2.3; 5.2.5; +34 more
CVE-2023-20190
5.3
1%
Sep 13
A vulnerability in the classic access control list (ACL) compression feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass the protection that…
Affected: 5.2.0; 5.2.1; 5.2.2; 5.2.4; 5.2.3; 5.2.5; +34 more
CVE-2023-20064
4.6
0%
Mar 9
Cisco IOS XR Software Bootloader Unauthenticated Information Disclosure Vulnerability
Affected: All versions, or not specified
CVE-2022-20846
4.3
1%
Nov 15
Cisco IOS XR Software Cisco Discovery Protocol Buffer Overflow Vulnerability
Affected: 6.5.3; 6.5.29; 6.5.1; 6.6.1; 6.5.2; 6.5.92; +34 more
CVE-2024-20319
4.3
0%
Mar 13
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…
Affected: 5.2.0; 5.2.1; 5.2.2; 5.2.4; 5.2.3; 5.2.5; +34 more
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