CI
Product
Cisco IOS XE Software
by Cisco · last CVE Aug 5, 2026
On CISA KEVExploited in the wild
41
CVEs
6
On KEV
10.0
Max CVSS
0
New 30D
Severity mix
Critical 3High 24Medium 14Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2017-6742
In wildKEV
8.8
21%
Jul 17
Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability
Affected: 3.7.0S; 3.7.1S; 3.7.2S; 3.7.3S; 3.7.4S; 3.7.5S; +34 more
CVE-2017-6738
In wildKEV
8.8
11%
Jul 17
Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability
Affected: 3.2.0SG; 3.2.1SG; 3.2.2SG; 3.2.3SG; 3.2.4SG; 3.2.5SG; +34 more
CVE-2025-20352
In wildKEV
7.7
42%
Sep 24
Cisco IOS and IOS XE Software SNMP Denial of Service and Remote Code Execution Vulnerability
Affected: 3.5.0E; 3.5.1E; 3.5.2E; 3.5.3E; 3.6.0E; 3.6.1E; +34 more
CVE-2023-20273
In wildKEV
7.2
93%
Oct 24
Cisco IOS XE Web UI Command Injection Vulnerability
Affected: 16.1.1; 16.1.2; 16.1.3; 16.2.1; 16.2.2; 16.3.1; +34 more
CVE-2026-20301
8.6
1%
Aug 5
Cisco IOS Software and IOS XE Software Extensible Messaging Client Protocol Denial of Service Vulnerability
Affected: 17.2.1a; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; 16.6.5; +34 more
CVE-2026-20273
8.6
0%
Aug 5
Cisco IOS XE Software Security Hardening Release
Affected: 17.2.1a; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; 16.6.5; +34 more
CVE-2026-20271
8.6
0%
Aug 5
Cisco IOS XE Software Security Hardening Release
Affected: 17.2.1a; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; 16.6.5; +34 more
CVE-2026-20270
8.6
0%
Aug 5
Cisco IOS XE Software Security Hardening Release
Affected: 17.2.1a; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; 16.6.5; +34 more
CVE-2026-20269
8.6
0%
Aug 5
Cisco IOS XE Software Security Hardening Release
Affected: 17.2.1a; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; 16.6.5; +34 more
CVE-2026-20268
8.6
0%
Aug 5
Cisco IOS XE Software Security Hardening Release
Affected: 17.2.1a; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; 16.6.5; +34 more
CVE-2026-20263
8.6
1%
Aug 5
Cisco IOS XE Software Blocks Extensible Exchange Protocol Denial of Service Vulnerability
Affected: 17.2.1a; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; 16.6.5; +34 more
CVE-2026-20012
8.6
0%
Mar 25
A vulnerability in the Internet Key Exchange version 2 (IKEv2) feature of Cisco IOS Software, Cisco IOS XE Software, Cisco Secure Firewall Adaptive Security Appliance (ASA)…
Affected: 3.5.0E; 3.5.1E; 3.5.2E; 3.5.3E; 3.11.1S; 3.11.2S; +34 more
CVE-2026-20086
8.6
0%
Mar 25
A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) packets of Cisco IOS XE Wireless Controller Software for the Catalyst CW9800…
Affected: 17.14.1; 17.15.1; 17.15.2; 17.15.3; 17.15.2b; 17.15.4; +4 more
CVE-2026-20084
8.6
0%
Mar 25
A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause BOOTP packets to be forwarded between VLANs,…
Affected: 16.6.1; 16.6.2; 16.6.3; 16.6.4; 16.6.5; 16.6.4a; +34 more
CVE-2022-20837
8.6
1%
Oct 10
Cisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2022-20870
8.6
1%
Oct 10
Cisco IOS XE Software for Catalyst Switches MPLS Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2026-20124
7.7
1%
Aug 5
Cisco IOS XE Software SNMP Denial of Service Vulnerability
Affected: 17.2.1a; 3.18.7SP; 16.12.1y; 16.12.3s; 16.7.1b; 16.6.2; +34 more
CVE-2026-20125
7.7
0%
Mar 25
A vulnerability in the HTTP Server feature of Cisco IOS Software and Cisco IOS XE Software Release 3E could allow an authenticated, remote attacker to cause an affected device to…
Affected: 3.5.0E; 3.5.1E; 3.5.2E; 3.5.3E; 3.11.1S; 3.11.2S; +34 more
CVE-2022-20856
7.5
1%
Sep 30
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Mobility Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2022-20848
7.5
1%
Sep 30
Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points UDP Processing Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2022-20847
7.5
1%
Sep 30
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2026-20004
7.4
0%
Mar 25
A vulnerability in the TLS library of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to exhaust the available memory of an affected device
Affected: 16.9.1; 16.9.2; 16.9.1a; 16.9.1b; 16.9.1s; 16.9.3; +34 more
CVE-2022-20915
7.4
0%
Oct 10
Cisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability
Affected: All versions, or not specified
CVE-2022-20851
7.2
1%
Sep 30
Cisco IOS XE Software Web UI Command Injection Vulnerability
Affected: All versions, or not specified
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