{"cve":"CVE-2022-42705","nvd":{"published":"2022-12-05T21:15:10.177","modified":"2026-06-17T05:05:09.760","status":"Modified","description":"A use-after-free in res_pjsip_pubsub.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 activity on that subscription.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-416"],"references":["https://downloads.asterisk.org/pub/security/AST-2022-008.html","https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html","https://www.debian.org/security/2023/dsa-5358","https://downloads.asterisk.org/pub/security/AST-2022-008.html","https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html"],"products":["sangoma:asterisk","sangoma:certified_asterisk"],"source":"nvd","synced_at":"2026-10-19T21:37:28.463369388+00:00"},"epss":{"cve":"CVE-2022-42705","score":0.01318,"percentile":0.70823,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}