{"cve":"CVE-2016-1834","nvd":{"published":"2016-05-20T10:59:48.097","modified":"2026-06-17T00:42:42.877","status":"Modified","description":"Heap-based buffer overflow in the xmlStrncat function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-119","CWE-122"],"references":["http://lists.apple.com/archives/security-announce/2016/May/msg00001.html","http://lists.apple.com/archives/security-announce/2016/May/msg00002.html","http://lists.apple.com/archives/security-announce/2016/May/msg00003.html","http://lists.apple.com/archives/security-announce/2016/May/msg00004.html","http://rhn.redhat.com/errata/RHSA-2016-2957.html"],"products":["apple:iphone_os","apple:mac_os_x","apple:tvos","apple:watchos","canonical:ubuntu_linux","debian:debian_linux","mcafee:web_gateway","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","xmlsoft:libxml2"],"source":"nvd","synced_at":"2026-10-19T20:38:51.654415212+00:00"},"epss":{"cve":"CVE-2016-1834","score":0.04622,"percentile":0.91699,"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."]}