CVE-2019-5747

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Jan 9, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2019-5747: High severity, CVSS 7.5 | Vulnix