What’s Vulnerable › Vulnerabilities

CVE-2020-7982

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-03-16 · updated 2026-06-17
• Weakness: CWE-345

Description

An issue was discovered in OpenWrt 18.06.0 to 18.06.6 and 19.07.0, and LEDE 17.01.0 to 17.01.7. A bug in the fork of the opkg package manager before 2020-01-25 prevents correct parsing of embedded checksums in the signed repository index, allowing a man-in-the-middle attacker to inject arbitrary package payloads (which are installed without verification).

Affected products

• openwrt Lede: from 17.01.0 through 17.01.7
• openwrt: from 18.06.0 before 18.06.7; 19.07.0 — fixed in 18.06.7

How to fix

Upgrade to a fixed version: openwrt 18.06.7. Check the vendor advisory for mitigations.

References

• https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/
• https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982
• https://github.com/openwrt/openwrt/commits/master
• https://openwrt.org/advisory/2020-01-31-1
• https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/
• https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982
• https://github.com/openwrt/openwrt/commits/master
• https://openwrt.org/advisory/2020-01-31-1

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