CVE-2007-3998
MEDIUMEPSS 86th pctlDescription
The wordwrap function in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, does not properly use the breakcharlen variable, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash, or infinite loop) via certain arguments, as demonstrated by a 'chr(0), 0, ""' argument set.
How to fix
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
Elevated risk: more likely to be exploited than 86% of all known CVEs.
References
- lists.opensuse.org
- rhn.redhat.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secunia.com
- secweb.se
- support.avaya.com
- debian.org
- debian.org
- gentoo.org
- mandriva.com
- redhat.com
- redhat.com
- ubuntu.com
- vupen.com
- launchpad.net
- oval.cisecurity.org
- usn.ubuntu.com
- redhat.com
Related Vulnerabilities
Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-3400 | Critical | 10.0 | 100% | KEV + Ransom | - |
| CVE-2021-45105 | Medium | 5.9 | 100% | - | Fix |
| CVE-2021-44228 | Critical | 10.0 | 100% | KEV + Ransom | Fix |
| CVE-2021-21985 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2018-7600 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2020-3452 | High | 7.5 | 100% | KEV | Fix |
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.