CVSS 3.1 Score 7.5 of 10 (high)


Published Dec 14, 2023
Updated: Dec 29, 2023
CWE ID 120


CVE-2023-37457 is a high-severity vulnerability that affects Asterisk, an open-source private branch exchange and telephony toolkit. The vulnerability exists in versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0, as well as certified-asterisk 18.9-cert5 and prior. It occurs when the 'update' functionality of the PJSIP_HEADER dialplan function exceeds the available buffer space, leading to memory overwrites or crashes. The vulnerability is not externally exploitable unless the dialplan is explicitly written to update a header based on data from an outside source. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa to remediate this issue.


Explore Beyond the CVE Basics with Recorded Future's Vulnerability Intelligence

Note: This is just a basic overview providing quick insights into CVE-2023-37457 information. Gain full access to comprehensive CVE data, risk scores, prioritization, and mitigation data through Recorded Future's Vulnerability Intelligence:
  • Prioritize with Risk-Based Scoring
  • Explore the Extensive Vulnerability Database
  • Receive Early Alerts on Emerging CVEs
  • Focus on Critical Exploitable Vulnerabilities
  • Streamline Remediation with Integration Options