medium
6.8
CWE
119
Advisory Published
Updated

CVE-2007-4768: Buffer Overflow

First published: Wed Nov 07 2007(Updated: )

Heap-based buffer overflow in Perl-Compatible Regular Expression (PCRE) library before 7.3 allows context-dependent attackers to execute arbitrary code via a singleton Unicode sequence in a character class in a regex pattern, which is incorrectly optimized.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
PCRE<=6.1
PCRE<=7.3
PCRE<=6.0

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2007-4768?

    CVE-2007-4768 is rated as a high severity vulnerability due to the potential for arbitrary code execution.

  • How do I fix CVE-2007-4768?

    To fix CVE-2007-4768, update the PCRE library to version 7.4 or later.

  • Which versions of PCRE are affected by CVE-2007-4768?

    CVE-2007-4768 affects all versions of PCRE prior to 7.4.

  • Who can exploit CVE-2007-4768?

    CVE-2007-4768 can be exploited by context-dependent attackers using specially crafted regex patterns.

  • What kind of attack is possible through CVE-2007-4768?

    CVE-2007-4768 allows attackers to execute arbitrary code on vulnerable systems.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203