CVE-2017-12319 · Severity: critical · CVSS 5.9 · Exploited in the wild · Published 2022-03-03
A vulnerability in the BGP implementation for Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) or corrupt the BGP routing table. The issue stems from a miscalculation of the IP address length field when processing BGP Inclusive Multicast Ethernet Tag Route or MAC/IP Advertisement Route update packets.
Yes. CVE-2017-12319 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.
How severe is CVE-2017-12319?
Critical severity, with a CVSS score of 5.9, published 3 March 2022.
Which products and versions are affected?
Cisco IOS XE prior to 16.3.
Is there a fix for CVE-2017-12319?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2017-12319 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2017-12319?
Check whether you run Cisco IOS XE or Cisco IOS XE Software. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.