CVE-2020-7248

HIGH

OpenWrt < 18.06.7 and 19.x < 19.07.1 - Stack-Based Buffer Overflow in libubox JSON Serialization

Title source: llm
STIX 2.1

Description

libubox in OpenWrt before 18.06.7 and 19.x before 19.07.1 has a tagged binary data JSON serialization vulnerability that may cause a stack based buffer overflow.

References (3)

Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/openwrt/openwrt/commits/master
Vendor Advisory x_refsource_confirm
https://openwrt.org/advisory/2020-01-31-2
Third Party Advisory, US Government Resource x_refsource_misc
https://nvd.nist.gov/vuln/detail/CVE-2020-7248#range-4512438

Scores

CVSS v3 7.5
EPSS 0.0249
EPSS Percentile 82.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-787
Status published
Products (2)
openwrt/openwrt 19.07.0 (3 CPE variants)
openwrt/openwrt 18.06.0 - 18.06.7
Published Mar 16, 2020
Tracked Since Feb 18, 2026