What’s Vulnerable › Vulnerabilities

CVE-2020-12654

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-05-05 · updated 2026-06-17
• Weakness: CWE-787

Description

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.

Affected products

• Linux kernel: before 5.5.4 — fixed in 5.5.4

How to fix

Upgrade to a fixed version: Linux kernel 5.5.4. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
• http://www.openwall.com/lists/oss-security/2020/05/08/2
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.4
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9b153c5591548612c3955c9600a98150c81875
• https://github.com/torvalds/linux/commit/3a9b153c5591548612c3955c9600a98150c81875
• https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
• https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
• https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
• https://security.netapp.com/advisory/ntap-20200608-0001/
• https://usn.ubuntu.com/4392-1/
• https://usn.ubuntu.com/4393-1/
• https://www.debian.org/security/2020/dsa-4698

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