Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2016-4658

CVE-2016-4658CRITICAL

n/a n/a — xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other pr…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .0856   95.0     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  May 11  Reserved by apple
  Sep 25  Published (CNA: apple)
  Oct 14  ENRICHED — CVE-2016-4658. Received CVSS 9.8 and CPE data from NVD.

CWE-119 · CNA: apple · CVSS v3.0 · 14 references · NVD status: Modified

Description

xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 11, 2016	Reserved	Reserved by apple
September 25, 2016	Published	Published (CNA: apple)
October 14, 2026	ENRICHED	ENRICHED — CVE-2016-4658. Received CVSS 9.8 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-119

References (14)

http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html [Mailing List, Vendor Advisory]
http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html [Mailing List, Vendor Advisory]
http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html [Mailing List, Vendor Advisory]
http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html [Mailing List, Vendor Advisory]
http://www.securityfocus.com/bid/93054 [Third Party Advisory, VDB Entry]
http://www.securitytracker.com/id/1036858 [Third Party Advisory, VDB Entry]
http://www.securitytracker.com/id/1038623 [Third Party Advisory, VDB Entry]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b [Patch, Third Party Advisory]
https://security.gentoo.org/glsa/201701-37 [Third Party Advisory]
https://support.apple.com/HT207141 [Vendor Advisory]
https://support.apple.com/HT207142 [Vendor Advisory]
https://support.apple.com/HT207143 [Vendor Advisory]
https://support.apple.com/HT207170 [Vendor Advisory]

Authoritative record: CVE-2016-4658 at cve.org

Weaknesses: CWE-119

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2016-4658 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.