CVE-2020-7982

Name: CVE-2020-7982
Creator: NVD / NIST
Published: 2020-03-16T22:15:14.667+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.59%

Last modified Jun 17, 2026

CVE-2020-7982 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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).. EPSS estimates a 1.59% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.59%

72.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openwrt	Lede	>= 17.01.0, <= 17.01.7
Openwrt	Openwrt	>= 18.06.0, < 18.06.7
Openwrt	Openwrt	19.07.0

References

https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/Exploit, Press/Media Coverage, Third Party Advisory
https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982Exploit, Third Party Advisory
https://github.com/openwrt/openwrt/commits/masterPatch, Third Party Advisory
https://openwrt.org/advisory/2020-01-31-1Vendor Advisory
https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/Exploit, Press/Media Coverage, Third Party Advisory
https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982Exploit, Third Party Advisory
https://github.com/openwrt/openwrt/commits/masterPatch, Third Party Advisory
https://openwrt.org/advisory/2020-01-31-1Vendor Advisory

Timeline

Published: Mar 16, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7982?

How severe is CVE-2020-7982?

CVE-2020-7982 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.59% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7982?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-7982?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST