{"cve":"CVE-2015-1243","nvd":{"published":"2015-05-01T10:59:05.043","modified":"2026-06-17T00:22:01.680","status":"Modified","description":"Use-after-free vulnerability in the MutationObserver::disconnect function in core/dom/MutationObserver.cpp in the DOM implementation in Blink, as used in Google Chrome before 42.0.2311.135, allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering an attempt to unregister a MutationObserver object that is not currently registered.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://googlechromereleases.blogspot.com/2015/04/stable-channel-update_28.html","http://lists.opensuse.org/opensuse-updates/2015-05/msg00009.html","http://rhn.redhat.com/errata/RHSA-2015-0921.html","http://www.debian.org/security/2015/dsa-3242","http://www.securityfocus.com/bid/74389"],"products":["canonical:ubuntu_linux","debian:debian_linux","google:chrome","redhat:enterprise_linux_desktop_supplementary","redhat:enterprise_linux_server_supplementary","redhat:enterprise_linux_server_supplementary_eus","redhat:enterprise_linux_workstation_supplementary"],"source":"nvd","synced_at":"2026-10-19T20:35:35.528235705+00:00"},"epss":{"cve":"CVE-2015-1243","score":0.01979,"percentile":0.80528,"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."]}