CVE-2026-57199Low· 2.3▾ SunlitAsterisk 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 `fi…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 12.6 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 28.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.5%
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.
asterisk < 20.20.1asterisk >= 21.0.0-pre1, < 21.12.3asterisk >= 22.0.0-pre1, < 22.10.1asterisk >= 23.0.0-pre1, < 23.4.1certified-asterisk < 20.7-cert11certified-asterisk >= 22.8-cert1-pre1, < 22.8-cert3Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-57188High· 7.1Asterisk: Stack buffer overflow in res_xmpp XMPP namespace prefix handling
CVE-2026-57197High· 7.7Asterisk: Heap Buffer Overflow in OGG/Speex File Playback (format_ogg_speex)
CVE-2026-57194Medium· 5.9Asterisk: chan_unistim DIALPAGE digit handling can overflow phone_number and crash Asterisk
CVE-2026-57201High· 7.5Asterisk: Stack Buffer Overflow in H.323 ooTrace() via Unbounded vsprintf into Fixed 2048-byte Buffer