CVE-2016-4658xpointer.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, wh…
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 7 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.0, NVD)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- apple
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
apple iphone_os apple:iphone_os | before 10.0 | NVD |
apple mac_os_x apple:mac_os_x | before 10.12 | NVD |
apple tvos apple:tvos | before 10.0 | NVD |
apple watchos apple:watchos | before 3.0 | NVD |
xmlsoft libxml2 xmlsoft:libxml2 | before 2.9.5 | NVD |
References
- https://support.apple.com/HT207141x-refsource-confirm, vendor-advisory
- http://www.securitytracker.com/id/1036858vdb-entry, x-refsource-sectrack, third-party-advisory
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlvendor-advisory, x-refsource-apple, mailing-list
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.htmlvendor-advisory, x-refsource-apple, mailing-list
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.htmlvendor-advisory, x-refsource-apple, mailing-list
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.htmlvendor-advisory, x-refsource-apple, mailing-list
- http://www.securityfocus.com/bid/93054vdb-entry, x-refsource-bid, third-party-advisory
- https://support.apple.com/HT207170x-refsource-confirm, vendor-advisory
- https://security.gentoo.org/glsa/201701-37vendor-advisory, x-refsource-gentoo, third-party-advisory
- https://support.apple.com/HT207142x-refsource-confirm, vendor-advisory
- https://support.apple.com/HT207143x-refsource-confirm, vendor-advisory
- http://www.securitytracker.com/id/1038623vdb-entry, x-refsource-sectrack, third-party-advisory
- https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344bx-refsource-confirm, patch, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.