Security readout for executives and security teams
CVE-2006-7121 is a denial-of-service issue in the Linksys SPA-921 VoIP desktop phone web server. A remote attacker can cause the phone to reboot by sending overly long URL or Basic Authentication credential data. Business impact is temporary phone outage, most relevant where legacy SPA-921 devices remain in service. Exposure is likely limited to organizations still operating Linksys SPA-921 phones with the embedded HTTP server reachable by untrusted users. Internet-exposed management interfaces would increase risk, but the provided sources do not confirm common internet exposure. Prioritize if SPA-921 phones support business-critical calling or have reachable web management interfaces. Otherwise, handle through legacy asset cleanup and network segmentation. The main risk is disruption, not data theft, based on the provided evidence. Mitigation focus: Inventory environments for Linksys SPA-921 phones.; Check vendor guidance and firmware history for any remediation.; Restrict phone web management to trusted administrative networks..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2006-7121 mapping review
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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
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.
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
- linksys-spa921-long-username-dos(29349)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
