CVE-2016-4658 is a critical use-after-free and memory corruption vulnerability in libxml2 versions prior to 2.9.5, affecting Apple iOS, OS X, tvOS, and watchOS, among other products. This flaw allows remote attackers to execute arbitrary code or cause a denial of service through a crafted XML document that exploits improper handling of namespace nodes in XPointer ranges. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion, indicating awareness and potential interest.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 10.0CPE matchmatch criteria | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | ||
< 10.12CPE matchmatch criteria | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | ||
< 10.0CPE matchmatch criteria | cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | ||
< 3.0CPE matchmatch criteria | cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | ||
< 2.9.5CPE matchmatch criteria | cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.