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Vulnerability record · CVE-2020-12653 · published 5 May 2020

CVE-2020-12653: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

An issue was found in Linux kernel before 5.5.4. The mwifiex_cmd_append_vsie_tlv() function in drivers/net/wireless/marvell/mwifiex/scan.c allows local users to gain privileges or cause a denial of service because of an incorrect memcpy and buffer overflow, aka CID-b70261a288ea.

7.8 CVSS 3.1 High EPSS 0.45% · top 63.2% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score, v2 4.6
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
22Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

Description

An issue was found in Linux kernel before 5.5.4. The mwifiex_cmd_append_vsie_tlv() function in drivers/net/wireless/marvell/mwifiex/scan.c allows local users to gain privileges or cause a denial of service because of an incorrect memcpy and buffer overflow, aka CID-b70261a288ea.

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

Affected products

22 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/05/08/2 Mailing ListThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.4 Release NotesVendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b70261a288ea4d2f4ac7cd04be08a9f0f2de4f4d PatchVendor Advisory
https://github.com/torvalds/linux/commit/b70261a288ea4d2f4ac7cd04be08a9f0f2de4f4d PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200608-0001/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4698 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/05/08/2 Mailing ListThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.4 Release NotesVendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b70261a288ea4d2f4ac7cd04be08a9f0f2de4f4d PatchVendor Advisory
https://github.com/torvalds/linux/commit/b70261a288ea4d2f4ac7cd04be08a9f0f2de4f4d PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200608-0001/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4698 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-12653), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.