CVE-2005-2181: n/a vulnerability

CVE-2005-2181: Cisco 7940/7960 Voice over IP (VoIP) phones do not properly check the Call-ID, branch, and tag values in a...

Cisco 7940/7960 Voice over IP (VoIP) phones do not properly check the Call-ID, branch, and tag values in a NOTIFY message to verify a subscription, which allows remote attackers to spoof messages such as the "Messages waiting" message.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 22:15 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old SIP signaling flaw in Cisco 7940/7960 VoIP phones. A remote attacker could spoof certain phone notifications, including message-waiting indicators. The bundle does not show code execution, data theft, a patch, or active exploitation. Exposure is most plausible where legacy Cisco 7940/7960 phones still run SIP and accept signaling from untrusted networks. Internet-exposed or flat voice networks increase risk. Treat this as a legacy VoIP hygiene issue, not an emergency from the available evidence. Prioritize if affected phones remain reachable from untrusted networks. Mitigation focus: Check Cisco or maintainer guidance for firmware or configuration fixes.; Inventory Cisco 7940/7960 phones still deployed with SIP firmware.; Restrict SIP signaling to trusted call-control systems and voice VLANs..

Prepared: Jun 29, 2026, 19:18 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: Jul 10, 2005, 04:00 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
sip-notify-message-spoof(21260)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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