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CVE-2011-0420
The grapheme_extract function in the Internationalization extension (Intl) for ICU for PHP 5.3.5 allows context-dependent attackers to…
Medium5.0EPSS 14.4%
- Published
- Updated
- Reserved
- Assigned by
- certcc
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 14.4% · top 3.4% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (12)
- 20110216 PHP 5.3.5 grapheme_extract() NULL Pointer Dereference (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- DSA-2266 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- VU#210829 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 46429 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 8087 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 16182 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- APPLE-SA-2011-10-12-3 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- php-graphemeextract-dos(65437) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20110217 Re: PHP 5.3.5 grapheme_extract() NULL Pointer Dereference (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20110217 PHP 5.3.5 grapheme_extract() NULL Pointer Dereference (opens in a new tab)third-party-advisoryx_refsource_SREASONRESx_transferred
- http://support.apple.com/kb/HT5002 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://svn.php.net/viewvc/php/php-src/trunk/ext/intl/grapheme/grapheme_string.c?r1=306449&r2=306448&pathrev=306449 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2011-0420)Record last updated .