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Case File

CVE-2018-20679

HIGH · CVSS 7.5 EPSS 7.69% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-01-09 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2018-20679
Severity
HIGH
CVSS
7.5
EPSS
7.69%

Original NVD Description

An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.

Related CVEs

Other vulnerabilities affecting the same vendor(s)