Description
Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, `app_sms.c` copies externally controlled `SMS` lengths into `fixed in-struct buffers` without sufficient bounds checks, allowing an attacker to corrupt memory or crash Asterisk. The administrator must explicitly use the `SMS` dialplan application, which is useful when routing calls to or from `analog devices`, and must not have ensured that data passed to the application is valid. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.
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Remediation
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Tracking
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Advisories
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References
History
Tue, 27 Oct 2026 22:00:00 +0000
Subscriptions
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-27T21:52:42.436Z
Reserved: 2026-06-24T02:00:46.800Z
Link: CVE-2026-57199
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Status : Received
Published: 2026-10-27T22:17:27.723
Modified: 2026-10-27T22:17:27.723
Link: CVE-2026-57199
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OpenCVE Enrichment
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Weaknesses
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CWE-787
Out-of-bounds Write