ASR 1001-Hx vulnerabilitiesAnd the versions its exploited flaws hit.

Product11 known exploited0 versions
The short answer

ASR 1001-Hx is made by Cisco. We track 42 published vulnerabilities listed under that exact name, across 0 versions. 11 of them are on the list of flaws known to be exploited, the newest added on 25 February 2026. Cisco lists newer releases under their own names, such as ASR 1001-Hx R, so check those pages too.

Check your version

The most recent ASR 1001-Hx flaw added to the known-exploited list is CVE-2022-20775, on 25 February 2026. We keep watching the known-exploited list.

Other names

Is ASR 1001-Hx listed under other names? Yes.

Cisco also lists ASR 1001-Hx under more specific names, such as ASR 1001-Hx R. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.

Versions

Which versions of ASR 1001-Hx do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

Known exploited

Which ASR 1001-Hx vulnerabilities are being exploited?

11 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.

  1. 7.8
    CVE-2022-20775HighKnown exploited
    Cisco 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.

    Chance of use12%Known exploited since25 Feb 2026
  2. 6.5
    CVE-2017-12232MediumKnown exploited
    Cisco 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...

    Chance of use2.2%Known exploited since3 Mar 2022
  3. 7.5
    CVE-2017-12237HighKnown exploited
    Cisco 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...

    Chance of use7.1%Known exploited since3 Mar 2022
  4. 9.8
    CVE-2017-12240CriticalKnown exploited
    Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability

    The Dynamic Host Configuration Protocol (DHCP) relay subsystem of Cisco IOS and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain...

    Chance of use14%Known exploited since3 Mar 2022
  5. 5.9
    CVE-2017-12319MediumKnown exploited
    Cisco 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...

    Chance of use5.2%Known exploited since3 Mar 2022
  6. 7.5
    CVE-2017-12231HighKnown exploited
    Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability

    A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS could allow an unauthenticated, remote attacker to cause a denial of service.

    Chance of use7.1%Known exploited since3 Mar 2022
  7. 8.6
    CVE-2018-0158HighKnown exploited
    Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability

    A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected...

    Chance of use7.2%Known exploited since3 Mar 2022
  8. 8.6
    CVE-2018-0173HighKnown exploited
    Cisco IOS and IOS XE Software Improper Input Validation Vulnerability

    A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets can allow for denial-of-service (DoS).

    Chance of use7.6%Known exploited since3 Mar 2022
Exploit likelihood

Which ASR 1001-Hx 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.

50% or more10% to 49%Under 10%
  1. 14%
    CVE-2017-12240CriticalKnown exploited

    The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an...

    CVSS9.8Published29 Sep 2017
  2. 12%
    CVE-2022-20775HighKnown exploited

    Multiple vulnerabilities in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges.

    CVSS7.8Published30 Sep 2022
  3. 7.6%
    CVE-2018-0173HighKnown exploited

    A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets could allow an unauthenticated, remote attacker to...

    CVSS8.6Published28 Mar 2018
  4. 7.2%
    CVE-2018-0158HighKnown exploited

    A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected...

    CVSS8.6Published28 Mar 2018
  5. 7.1%
    CVE-2018-0154HighKnown exploited

    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...

    CVSS7.5Published28 Mar 2018
  6. 7.1%
    CVE-2017-12237HighKnown exploited

    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,...

    CVSS7.5Published29 Sep 2017
  7. 7.1%
    CVE-2017-12231HighKnown exploited

    A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on...

    CVSS7.5Published29 Sep 2017
  8. 5.2%
    CVE-2017-12319MediumKnown exploited

    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...

    CVSS5.9Published27 Mar 2018
  9. 4.9%
    CVE-2018-0179MediumKnown exploited

    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...

    CVSS5.9Published28 Mar 2018
  10. 4.9%
    CVE-2018-0180MediumKnown exploited

    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...

    CVSS5.9Published28 Mar 2018
Precursor Intelligence

Running ASR 1001-Hx? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

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FAQ

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We track 42 published vulnerabilities listed under the name ASR 1001-Hx, across 0 versions. The most recent ASR 1001-Hx flaw added to the known-exploited list is CVE-2022-20775, on 25 February 2026.

11 are on the list of flaws known to be exploited. The most recently added are CVE-2022-20775, CVE-2017-12232 and CVE-2017-12237.

Cisco also lists ASR 1001-Hx under more specific names, such as ASR 1001-Hx R. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.

Create a Precursor Intelligence account and track ASR 1001-Hx. 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.