CVSS 3.1 Score 6.5 of 10 (medium)


Published Jan 12, 2024
Updated: Jan 19, 2024
CWE ID 755


CVE-2024-21587 is an Improper Handling of Exceptional Conditions vulnerability found in the broadband edge subscriber management daemon (bbe-smgd) of Juniper Networks Junos OS on MX Series. This vulnerability can be exploited by an attacker who is directly connected to the vulnerable system and repeatedly flaps DHCP subscriber sessions. By doing so, the attacker can cause a slow memory leak, leading to a Denial of Service (DoS) attack. The memory leak can only be resolved by manually restarting bbe-smgd. This vulnerability only affects systems with BFD liveness detection for DHCP subscribers enabled. Organizations using the affected products should monitor for signs of increased memory allocation in bbe-smgd by periodically executing the 'show system processes extensive' command. The potential danger posed by this vulnerability is a DoS attack, which could disrupt network operations and affect the availability of network services.

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

Note: This is just a basic overview providing quick insights into CVE-2024-21587 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