Servers and applications
CVE-2016-1840
Heap-based buffer overflow in the xmlFAParsePosCharGroup 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.
- Severity
- High 7.8
- Published
- 20 May 2016
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Fixed in
- 2.9.4
- Exploit chance
- 3.2% in the next 30 daysHigher than 88% of CVEs. EPSS by FIRST, 11 Nov 2026
- Weakness
- Memory buffer errors (CWE-119)
- Attack
- Needs local access · No login needed · Needs someone to click or open something
- Attacker can
- Read data · Change data · Take it down
- CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
libxml2Servers and applications · cpe:a:xmlsoft:libxml2 |
|