CVE-2012-5427: n/a vulnerability

CVE-2012-5427: Cisco IOS Unified Border Element (CUBE) in Cisco IOS before 15.3(2)T allows remote authenticated users to c...

Cisco IOS Unified Border Element (CUBE) in Cisco IOS before 15.3(2)T allows remote authenticated users to cause a denial of service (input queue wedge) via a crafted series of RTCP packets, aka Bug ID CSCuc42518.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 21:05 UTC (UTC+00:00)

Security readout for executives and security teams

This issue could let an authenticated remote user disrupt Cisco IOS Unified Border Element service by sending crafted RTCP traffic. The reported impact is denial of service through an input queue wedge, not data theft or code execution. Business urgency depends on whether legacy Cisco IOS CUBE systems remain deployed. Exposure is most likely in organizations still running Cisco IOS CUBE on versions before 15.3(2)T, especially where authenticated voice or RTCP paths are reachable by untrusted or semi-trusted users. Treat this as a legacy infrastructure risk. It is not evidenced as actively exploited here, but any remaining pre-15.3(2)T CUBE deployment may expose voice services to authenticated denial-of-service disruption. Mitigation focus: Inventory Cisco IOS CUBE deployments and record exact IOS versions.; Prioritize upgrade review for any CUBE system running before IOS 15.3(2)T.; Check Cisco release notes or current Cisco guidance for supported fixed releases..

Prepared: Jun 14, 2026, 14:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 23, 2014, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

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