Carrier Routing System vulnerabilitiesRanked by how likely they are to be used.

Product45 versions
The short answer

Carrier Routing System is made by Cisco. We track 11 published vulnerabilities in it, across 45 versions. None of them is on the list of flaws known to be exploited today. If you run Carrier Routing System, keep it on a version the vendor still supports.

See the riskiest flaws

We keep watching the known-exploited list.

Known exploited

Which Carrier Routing System vulnerabilities are being exploited?

This is the list that matters most: flaws criminals are using now.

None of Carrier Routing System's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Carrier Routing System 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. 2.3%

    Cisco IOS XR 5.0.1 and 5.2.1 on Network Convergence System (NCS) 6000 devices and 5.1.3 and 5.1.4 on Carrier Routing System X (CRS-X) devices allows remote attackers to cause a denial of service (line-card reload)...

    CVSS7.1Published21 Feb 2015
  2. 2.3%

    A vulnerability in the forwarding information base (FIB) code of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause inconsistency between the routing information base (RIB) and the FIB,...

    CVSS8.6Published8 Feb 2018
  3. 1.6%

    Cisco Carrier Routing System (CRS) allows remote attackers to cause a denial of service (packet loss) via short malformed packets that trigger inefficient processing, aka Bug ID CSCud79136.

    CVSS5.0Published31 Jan 2013
  4. 1.5%

    Cisco Carrier Routing System 3.9.1 allows remote attackers to cause a denial of service (Metro subsystem crash) via a fragmented GRE packet, aka Bug ID CSCts14887.

    CVSS5.0Published2 May 2012
  5. 1.5%

    Cisco Carrier Routing System (CRS) 3.9, 4.0, and 4.1 allows remote attackers to bypass ACL entries via fragmented packets, aka Bug ID CSCtj10975.

    CVSS5.8Published6 Aug 2012
  6. 1.5%

    Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service...

    CVSS7.5Published23 Sep 2020
  7. 1.3%

    Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service...

    CVSS8.6Published23 Sep 2020
  8. 1.3%

    Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service...

    CVSS7.5Published23 Sep 2020
  9. 0.8%

    Cisco Carrier Routing System (CRS) 5.1 and 5.1.4, as used in CRS Carrier Grade Services for CRS-1 and CRS-3 devices, allows remote attackers to cause a denial of service (line-card reload) via crafted IPv6-over-MPLS...

    CVSS5.3Published17 Sep 2016
  10. 0.5%

    A vulnerability in the implementation of Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an unauthenticated attacker who is in...

    CVSS7.4Published7 Aug 2019
Precursor Intelligence

Running Carrier Routing System? 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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  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
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FAQ

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We track 11 published vulnerabilities listed under the name Carrier Routing System, across 45 versions.

None of Carrier Routing System's vulnerabilities is on the list of flaws known to be exploited today.

Create a Precursor Intelligence account and track Carrier Routing System. 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.