CVE-2009-2055

Known Exploited

Description

Cisco IOS XR 3.4.0 through 3.8.1 allows remote attackers to cause a denial of service (session reset) via a BGP UPDATE message with an invalid attribute, as demonstrated in the wild on 17 August 2009.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.24% Top 25%
KEV Since 
Vendor Advisory cisco.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html mailing list
http://securitytracker.com/id?1022739 vdb entry broken link
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2009-2055?
CVE-2009-2055 has been scored as a medium severity vulnerability.
How to fix CVE-2009-2055?
To fix CVE-2009-2055, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-2055 being actively exploited in the wild?
It is confirmed that CVE-2009-2055 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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