CVE-2026-57191

A flaw was found in Asterisk. An unbounded string parsing vulnerability in the respjsippubsub module allows an unauthenticated remote attacker to trigger a stack-based buffer overflow by sending a specially crafted Message Waiting Indication MWI NOTIFY packet. Successful exploitation leads to a...

CVE-2026-57191

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

Linux Distros Unpatched Vulnerability : CVE-2026-57191

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-57191

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

DEBIAN-CVE-2026-57191

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

CVE-2026-57191

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

CVE-2026-57191

Asterisk is vulnerable to a stack buffer overflow in res_pjsip_pubsub.c due to an unbounded sscanf with %s conversion. An unauthenticated attacker can send a crafted SIP NOTIFY packet with an oversized message-summary body field, triggering a 901-byte out-of-bounds write that corrupts the stack m...

CVE-2026-57191 Asterisk: Stack buffer overflow in MWI NOTIFY Message-Account parsing

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

EUVD-2026-111397

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

CVE-2026-57191 Asterisk: Stack buffer overflow in MWI NOTIFY Message-Account parsing

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

CVE-2026-57191 Asterisk: Stack buffer overflow in MWI NOTIFY Message-Account parsing

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

CVE-2026-57191

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, an unbounded "sscanf" in "respjsippubsub" when parsing the "MWI NOTIFY" "Message-Account" field may allow an unauthenticate...

PT-2026-127239

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, an unbounded sscanf in res pjsip pubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated...

Asterisk buffer error vulnerability

Versions prior to Asterisk 20.20.1, 21.12.3, 22.10.1, and 23.4.1, as well as Certified Asterisk versions prior to 20.7-cert11 and 22.8-cert3 are affected by a buffer error vulnerability. This vulnerability stems from an unrestricted sscanf operation in respjsippubsub when parsing the...

CVE-2026-57191: asterisk: Asterisk is an open source private branch exchange and telephony toolkit

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, an unbounded sscanf in respjsippubsub when parsing the MWI NOTIFY Message-Account field may allow an unauthenticated attack...

ANT-2026-HFGGE6HR · asterisk/asterisk · stack_buffer_overflow

oob-write critical CVE-2026-57191 GHSA-589g-qgf8-m6mx Severity Claude critical · Security research firm critical revised; sealed as high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits...

EUVD-2014-6488

Malware in sbrugna...

Linux Distros Unpatched Vulnerability : CVE-2022-42705

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A use-after-free in respjsippubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asteris...

ALPINE-CVE-2022-42705

A use-after-free in respjsippubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk denial of service by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing...

CVE-2018-7284

A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the respjsippubsub module stores the accepted formats present in the Accept headers of the request. Th...