Security readout for executives and security teams
This flaw can let a remote attacker crash vulnerable Asterisk phone systems by sending a crafted IAX2 control frame. The main business risk is voice service disruption. The source bundle does not prove active exploitation or data theft, but outage impact can be material for organizations relying on Asterisk. Exposure is likely limited to Asterisk Open Source 1.4.x, 1.6.2.x, 1.8.x, or Business Edition C.3 deployments using reachable IAX2. Legacy systems are the main concern because the CVE is from 2011. Address promptly for any business-critical or internet-reachable Asterisk deployment. For internal-only or retired legacy systems, prioritize through normal vulnerability management after confirming IAX2 exposure. Mitigation focus: Upgrade to Asterisk 1.4.41.1, 1.6.2.18.1, 1.8.4.3, or Business Edition C.3.7.3 or later.; Apply applicable vendor distribution updates, including Debian or Fedora packages where relevant.; Restrict IAX2 exposure to trusted networks where business requirements allow..
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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CVE-2011-2535 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
- asterisk-iax2channeldriver-dos(68205)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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