Security readout for executives and security teams
This is a denial-of-service flaw in Cisco IOS and IOS XE RSVP handling. If a vulnerable router has a VRF interface configured, crafted RSVP traffic can wedge an interface queue and cause a service outage. The source bundle does not show data theft, code execution, or confirmed active exploitation. Exposure is most likely on legacy Cisco routing platforms running the named IOS or IOS XE trains with RSVP enabled and VRF interfaces configured. Systems not using RSVP or not in the affected version ranges are not identified as affected by the bundle. Handle as a legacy network-infrastructure availability risk. It is not described as data compromise, but affected routers can lose service. Prioritize internet- or partner-reachable devices and routers supporting critical VRFs before routine legacy cleanup. Mitigation focus: Review Cisco advisory cisco-sa-20120328-rsvp for affected releases and fixed software.; Upgrade IOS XE 3.2.xS-3.4.xS systems to 3.4.2S or later where applicable.; For IOS 15.0 or 15.1, follow Cisco’s fixed-release guidance..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
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