An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7.

published 2020-07-15 6y ago modified 2026-06-17 4mo ago also EUVD-2020-7763

cvss: 6.7; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits: 0; none known

An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30.

Patch / fix

fixed in 1 distros 5 links 3

linux linux_kernel 5.7.7

debian ubuntu red hat suse opensuse

linux Debian 14, Debian 13, Debian 12 5.7.10-1

debian advisories DEBIAN-CVE-2020-15780

linux Ubuntu 18.04 LTS 4.15.0-112.113
linux Ubuntu 20.04 LTS 5.4.0-42.46
linux-aws Ubuntu 18.04 LTS 4.15.0-1079.83
linux-aws Ubuntu 20.04 LTS 5.4.0-1020.20
linux-gcp Ubuntu 16.04 LTS 4.15.0-1080.90~16.04.1
linux-gcp Ubuntu 20.04 LTS 5.4.0-1021.21
linux-hwe Ubuntu 16.04 LTS 4.15.0-112.113~16.04.1
linux-hwe Ubuntu 18.04 LTS 5.3.0-64.58~18.04.1

ubuntu advisories UBUNTU-CVE-2020-15780

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 8 4.18.0-193.14.3.el8_2
perf RHEL 8 4.18.0-193.14.3.el8_2
bpftool RHEL 8 4.18.0-193.14.3.el8_2
kernel-core RHEL 8 4.18.0-193.14.3.el8_2
kernel-tools RHEL 8 4.18.0-193.14.3.el8_2
python3-perf RHEL 8 4.18.0-193.14.3.el8_2
kernel-modules RHEL 8 4.18.0-193.14.3.el8_2
kernel-zfcpdump RHEL 8 4.18.0-193.14.3.el8_2

red hat advisories RHSA-2020:3222 RHSA-2020:3218 RHSA-2020:3228 RHSA-2020:3219

kernel-rt Real Time Module 15 SP1 4.12.14-14.28.1
kernel-syms-rt Real Time Module 15 SP1 4.12.14-14.28.1
kernel-rt_debug Real Time Module 15 SP1 4.12.14-14.28.1
kernel-source-rt Real Time Module 15 SP1 4.12.14-14.28.1
kernel-rt SLE Real Time 12 SP5 4.12.14-10.13.1
kernel-syms-rt SLE Real Time 12 SP5 4.12.14-10.13.1
kernel-rt_debug SLE Real Time 12 SP5 4.12.14-10.13.1
kernel-source-rt SLE Real Time 12 SP5 4.12.14-10.13.1

suse advisories SUSE-SU-2020:2515-1 SUSE-SU-2020:2517-1 SUSE-SU-2020:2531-1 SUSE-SU-2020:2513-1 SUSE-SU-2020:2505-1 SUSE-SU-2020:2526-1

kernel-rt openSUSE Leap 15.2 5.3.18-lp152.3.5.1
kernel-syms-rt openSUSE Leap 15.2 5.3.18-lp152.3.5.1
kernel-rt_debug openSUSE Leap 15.2 5.3.18-lp152.3.5.1
kernel-source-rt openSUSE Leap 15.2 5.3.18-lp152.3.5.1
dpdk openSUSE Leap 15.2 19.11.1-lp152.2.5.1
drbd openSUSE Leap 15.2 9.0.22~1+git.fe2b5983-lp152.2.2.1
crash openSUSE Leap 15.2 7.2.8-lp152.3.2.1
mhvtl openSUSE Leap 15.2 1.62-lp152.2.2.1

opensuse advisories openSUSE-SU-2021:0242-1 openSUSE-SU-2020:1236-1 openSUSE-SU-2020:1153-1

Is CVE-2020-15780 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-15780 updated 2026-11-07 cvss 6.4

kernel: lockdown: bypass through ACPI write via acpi_configfs

Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-193.14.3.el8_2, kernel-debuginfo-common-aarch64 4.18.0-193.14.3.el8_2, kernel-debuginfo-common-ppc64le 4.18.0-193.14.3.el8_2
fixed: vendor fix RHSA-2020:3218
Red Hat CodeReady Linux Builder EUS (v. 8.1) kernel-debuginfo-common-x86_64 4.18.0-147.24.2.el8_1, kernel-debuginfo-common-aarch64 4.18.0-147.24.2.el8_1, kernel-debuginfo-common-ppc64le 4.18.0-147.24.2.el8_1
fixed: vendor fix RHSA-2020:3222
Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-193.14.3.el8_2, kernel 4.18.0-193.14.3.el8_2, bpftool 4.18.0-193.14.3.el8_2, kernel-core 4.18.0-193.14.3.el8_2, kernel-tools 4.18.0-193.14.3.el8_2, python3-perf 4.18.0-193.14.3.el8_2, +15 more
fixed: vendor fix RHSA-2020:3218
Red Hat Enterprise Linux BaseOS E4S (v. 8.0) perf 4.18.0-80.27.2.el8_0, kernel 4.18.0-80.27.2.el8_0, bpftool 4.18.0-80.27.2.el8_0, kernel-core 4.18.0-80.27.2.el8_0, kernel-tools 4.18.0-80.27.2.el8_0, python3-perf 4.18.0-80.27.2.el8_0, +9 more
fixed: vendor fix RHSA-2020:3228
Red Hat Enterprise Linux BaseOS EUS (v. 8.1) perf 4.18.0-147.24.2.el8_1, kernel 4.18.0-147.24.2.el8_1, bpftool 4.18.0-147.24.2.el8_1, kernel-core 4.18.0-147.24.2.el8_1, kernel-tools 4.18.0-147.24.2.el8_1, python3-perf 4.18.0-147.24.2.el8_1, +15 more
fixed: vendor fix RHSA-2020:3222
Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-core 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-modules 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-debug-core 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-debug-modules 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-modules-extra 4.18.0-193.14.3.rt13.67.el8_2, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-kvm 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-core 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-modules 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-debug-kvm 4.18.0-193.14.3.rt13.67.el8_2, kernel-rt-debug-core 4.18.0-193.14.3.rt13.67.el8_2, +4 more
fixed: vendor fix RHSA-2020:3219
Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, kernel-alt, python-perf, +9 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.37% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.7	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

Linux kernel rss critical rss

References

git.kernel.org /pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=75b0cea7bf307f362057cc778efe89af4c615354
patch, vendor-advisory
git.zx2c4.com /american-unsigned-language/tree/american-unsigned-language-2.sh
patch, third-party-advisory
openwall.com /lists/oss-security/2020/07/20/7
mailing-list, patch, third-party-advisory
usn.ubuntu.com /4425-1/
vendor-advisory, third-party-advisory
usn.ubuntu.com /4439-1/
vendor-advisory, third-party-advisory
usn.ubuntu.com /4426-1/
vendor-advisory, third-party-advisory
usn.ubuntu.com /4440-1/
vendor-advisory, third-party-advisory
lists.opensuse.org /opensuse-security-announce/2020-08/msg00009.html
vendor-advisory, mailing-list, third-party-advisory
lists.opensuse.org /opensuse-security-announce/2020-08/msg00047.html
vendor-advisory, mailing-list, third-party-advisory
cdn.kernel.org /pub/linux/kernel/v5.x/ChangeLog-5.7.7
release-notes, vendor-advisory
openwall.com /lists/oss-security/2020/06/15/3
mailing-list, third-party-advisory
openwall.com /lists/oss-security/2020/07/29/3
mailing-list, third-party-advisory
openwall.com /lists/oss-security/2020/07/30/3
mailing-list, third-party-advisory
openwall.com /lists/oss-security/2020/07/30/2
mailing-list, third-party-advisory

Sources

CVE List CVE-2020-15780
NVD CVE-2020-15780

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.