CVE-2020-25643

HighCVSS 7.2/10Last modified Jun 17, 2026

Description

A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Metrics

CVSS 3.1 7.2/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

VendorProductVersions
n/akernelLinux kernel versions before 5.9-rc7

References

Timeline

Published
Oct 6, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-25643: High severity, CVSS 7.2 | Vulnix