A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.
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This medium-severity CVE scores 6.7 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.
September 16, 2020
November 21, 2024
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-virtual-hwe-16.04-edge (4.15.0.117.118) @ xenial | 2026-05-23 | ubuntu |
| ubuntu | oem (4.15.0-1063) @ bionic | 2026-05-23 | ubuntu |
| redhat | kernel-0:4.18.0-80.31.1.el8_0 | 2020-11-24 | redhat |
| redhat | kpatch-patch | 2020-10-26 | redhat |
| redhat | kernel-rt-0:4.18.0-193.28.1.rt13.77.el8_2 | 2020-10-20 | redhat |
| redhat | kernel-0:4.18.0-147.32.1.el8_1 | 2020-10-20 | redhat |
| redhat | kernel-0:4.18.0-193.28.1.el8_2 | 2020-10-20 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.
RHSA-2020:4286 — Important
RHSA-2020:4287 — Important
RHSA-2020:4289 — Important
RHSA-2020:4331 — Important
RHSA-2020:4332 — Important
RHSA-2020:5199 — Important
Kernel Live Patch Security Notice
Kernel Live Patch Security Notice
Linux kernel vulnerability
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-14386
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msrc · redhat
CWE-787