CVE-2016-4658
9.8
CRITICAL · CVSS 3.0 · EPSS 8.6% (pctl 95)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 8.56% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2016-09-25 |
| Last modified | 2026-06-17 |
Affected (5)
| Vendor | Product |
|---|---|
| apple | iphone os |
| apple | mac os x |
| apple | tvos |
| apple | watchos |
| xmlsoft | libxml2 |
References
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html
- http://www.securityfocus.com/bid/93054
- http://www.securitytracker.com/id/1036858
- http://www.securitytracker.com/id/1038623
- https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b
- https://security.gentoo.org/glsa/201701-37
- https://support.apple.com/HT207141
- https://support.apple.com/HT207142
- https://support.apple.com/HT207143
- https://support.apple.com/HT207170
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html
- http://www.securityfocus.com/bid/93054
- http://www.securitytracker.com/id/1036858
- http://www.securitytracker.com/id/1038623
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