Servers and applications
CVE-2011-0420
The grapheme_extract function in the Internationalization extension (Intl) for ICU for PHP 5.3.5 allows context-dependent attackers to cause a denial of service (crash) via an invalid size argument, which triggers a NULL pointer dereference.
- Severity
- Medium 5.0
- Published
- 19 Feb 2011
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 14 Oct 2026
- Exploit chance
- 14% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
- Attack
- Over the network · No login needed
- Attacker can
- Slow it down
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
PHPServers and applications · cpe:a:php:php |
|