4451 Integrated Services Router vulnerabilitiesAnd the versions its exploited flaws hit.
4451 Integrated Services Router is made by Cisco. We track 31 published vulnerabilities in it, across 0 versions. 7 of them are on the list of flaws known to be exploited, the newest added on 25 February 2026. If you run 4451 Integrated Services Router, check your version against the exploited flaws below and patch those first.
The most recent 4451 Integrated Services Router flaw added to the known-exploited list is CVE-2022-20775, on 25 February 2026. We keep watching the known-exploited list.
Which versions of 4451 Integrated Services Router do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
Which 4451 Integrated Services Router vulnerabilities are being exploited?
7 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.8Cisco SD-WAN Path Traversal Vulnerability
Cisco SD-WAN CLI contains a path traversal vulnerability that could allow an authenticated local attacker to gain elevated privileges via improper access controls on commands within the application CLI.
- 7.5Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS and Cisco IOS XE could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an...
- 5.9Cisco IOS XE Software Ethernet Virtual Private Network Border Gateway Protocol Denial-of-Service Vulnerability
A vulnerability in the Border Gateway Protocol (BGP) over an Ethernet Virtual Private Network (EVPN) for Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting...
- 6.5Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability
A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS could allow an unauthenticated, adjacent attacker to cause an affected device...
- 5.9Cisco IOS Software Denial-of-Service Vulnerability
A vulnerability in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS)...
- 5.9Cisco IOS Software Denial-of-Service Vulnerability
A vulnerability in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS)...
- 7.5Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability
A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial-of-service (DoS) condition.
Which 4451 Integrated Services Router flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 12%
Multiple vulnerabilities in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges.
- 7.1%
A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition...
- 7.1%
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS 15.0 through 15.6 and Cisco IOS XE 3.5 through 16.5 could allow an unauthenticated, remote attacker to cause high CPU utilization,...
- 5.2%
A vulnerability in the Border Gateway Protocol (BGP) over an Ethernet Virtual Private Network (EVPN) for Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting...
- 4.9%
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of...
- 4.9%
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of...
- 4.8%CVE-2018-0150Critical
A vulnerability in Cisco IOS XE Software could allow an unauthenticated, remote attacker to log in to a device running an affected release of Cisco IOS XE Software with the default username and password that are used...
- 2.6%CVE-2021-34727Critical
A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device.
- 2.2%
A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an...
- 1.8%CVE-2020-3141High
Multiple vulnerabilities in the web management framework of Cisco IOS XE Software could allow an authenticated, remote attacker with read-only privileges to elevate privileges to the level of an Administrator user on...
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1 flaw being exploited affects software Acme tracks
Cisco SD-WAN CLI contains a path traversal vulnerability that could allow an authenticated local attacker to gain elevated privileges via improper access controls on commands within the application CLI. A successful exploit could allow the attacker to execute arbitrary commands as the root user.
- Matched to
- 4451 Integrated Services Router on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 31 published vulnerabilities listed under the name 4451 Integrated Services Router, across 0 versions. The most recent 4451 Integrated Services Router flaw added to the known-exploited list is CVE-2022-20775, on 25 February 2026.
7 are on the list of flaws known to be exploited. The most recently added are CVE-2022-20775, CVE-2017-12237 and CVE-2017-12319.
Create a Precursor Intelligence account and track 4451 Integrated Services Router. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.