CVE-2010-4686: n/a vulnerability

CVE-2010-4686: CallManager Express (CME) on Cisco IOS before 15.0(1)XA1 does not properly handle SIP TRUNK traffic that co...

CallManager Express (CME) on Cisco IOS before 15.0(1)XA1 does not properly handle SIP TRUNK traffic that contains rate bursts and a "peculiar" request size, which allows remote attackers to cause a denial of service (memory consumption) by sending this traffic over a long duration, aka Bug ID CSCtb47950.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 03:51 UTC (UTC+00:00)

Security readout for executives and security teams

This issue can let a remote attacker exhaust memory on Cisco CallManager Express running older Cisco IOS, disrupting voice services. The trigger involves sustained SIP trunk traffic with specific burst and size characteristics. Business impact is availability, not confirmed data theft or code execution. Exposure is most likely where Cisco CallManager Express runs on Cisco IOS earlier than 15.0(1)XA1 and processes SIP trunk traffic. The source bundle does not identify other affected products or CPEs. Treat this as a voice service availability risk. Prioritize internet-facing or partner-facing SIP trunk deployments first, then internal systems with high call criticality. No evidence in the provided sources supports emergency active-exploitation handling. Mitigation focus: Inventory Cisco IOS systems running CallManager Express and SIP trunks.; Prioritize systems below Cisco IOS 15.0(1)XA1 for upgrade planning.; Review Cisco release notes and Bug ID CSCtb47950 guidance..

Prepared: Jun 28, 2026, 01:17 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: Jan 7, 2011, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

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
ciscoios-siptrunk-dos(64585)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

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CWE details

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