CVE-2020-12654

HIGHNVD 7.17.1—

7.1

An issue was found in Linux kernel before 5.5.4. mwifiex_ret_wmm_get_status() in drivers/net/wireless/marvell/mwifiex/wmm.c allows a remote AP to trigger a heap-based buffer overflow because of an incorrect memcpy, aka CID-3a9b153c5591.

CVSS v3: 7.1
EG Score: 7.1(medium)
EPSS: 61.1%
KEV: Not listed

Published

May 5, 2020

Last Modified

November 21, 2024

References (24)

cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
cve@mitrehttp://www.openwall.com/lists/oss-security/2020/05/08/2
cve@mitrehttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.4
cve@mitrehttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9b153c5591548612c3955c9600a98150c81875
cve@mitrehttps://github.com/torvalds/linux/commit/3a9b153c5591548612c3955c9600a98150c81875
cve@mitrehttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
cve@mitrehttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
cve@mitrehttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
cve@mitrehttps://security.netapp.com/advisory/ntap-20200608-0001/
cve@mitrehttps://usn.ubuntu.com/4392-1/
cve@mitrehttps://usn.ubuntu.com/4393-1/
cve@mitrehttps://www.debian.org/security/2020/dsa-4698
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/05/08/2
af854a3a-2127-422b-91ae-364da2661108https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.4

Patch Availability(14)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-image-lowlatency (3.13.0.180.189) @ trusty	2026-05-27	ubuntu
ubuntu	linux-image-powerpc64-smp (3.2.0.147.161) @ precise	2026-05-27	ubuntu
redhat	kernel-0:3.10.0-693.72.1.el7	2020-08-12	redhat
redhat	kernel-rt-1:3.10.0-693.72.1.rt56.672.el6rt	2020-08-11	redhat
redhat	kernel-rt-0:3.10.0-1127.18.2.rt56.1116.el7	2020-07-29	redhat
redhat	kernel-0:3.10.0-957.58.2.el7	2020-07-29	redhat
redhat	kernel-0:3.10.0-1127.18.2.el7	2020-07-29	redhat
redhat	kernel-0:4.18.0-147.24.2.el8_1	2020-07-29	redhat
redhat	kernel-0:3.10.0-1062.31.2.el7	2020-07-29	redhat
redhat	kernel-0:3.10.0-327.90.2.el7	2020-07-29	redhat
redhat	kernel-0:4.18.0-193.13.2.el8_2	2020-07-21	redhat
redhat	kernel-rt-0:4.18.0-193.13.2.rt13.65.el8_2	2020-07-21	redhat
redhat	kernel-0:4.18.0-80.27.1.el8_0	2020-07-21	redhat
redhat	kernel-0:3.10.0-514.78.1.el7	2020-07-07	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.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-787Out-of-bounds Write

All Vendor Advisories

(15)

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.

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-12654?

CVE-2020-12654 is a high vulnerability published on May 5, 2020. An issue was found in Linux kernel before 5.5.4. mwifiexretwmmgetstatus() in drivers/net/wireless/marvell/mwifiex/wmm.c allows a remote AP to trigger a heap-based buffer overflow because of an incorrect memcpy, aka CID-3a9b153c5591.

When was CVE-2020-12654 disclosed?

CVE-2020-12654 was first published in the National Vulnerability Database on May 5, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-12654 actively exploited?

CVE-2020-12654 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-12654?

CVE-2020-12654 has a CVSS v3 base score of 7.1 (NVD).

How do I remediate CVE-2020-12654?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-12654, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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