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CVE-2020-12464

19
FAUCET Score

CVE-2020-12464 is a use-after-free vulnerability in the usb_sg_cancel function within the Linux kernel (before version 5.6.8), specifically affecting drivers/usb/core/message.c, and also impacting NetApp products. This vulnerability carries a CVSS score of 6.7 (Medium), indicating that a highly privileged local attacker could achieve high confidentiality, integrity, and availability impacts with low attack complexity. While the vulnerability is not listed in the KEV catalog and has no known public exploits or community discussion, its potential for significant system compromise warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.16.85CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 4.4.221CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.5, < 4.9.221CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.178CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.119CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
53.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 96th percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 17036-16820Fixed in: 5.4.91-3
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 5.4.91-3
microsoftpatch availablevia msrc
Product: cm1 kernel 5.4.91-3 on CBL Mariner 1.0Fixed in: 5.4.91-3
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 5.4.91-3
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-305.rt7.72.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-305.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel

Vendor Advisories (3)

microsoft2020-Sep/CVE-2020-12464

CVE-2020-12464

Sep 8, 2020
microsoft2020-Apr/CVE-2020-12464Moderate

usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference aka CID-056ad39ee925.

Apr 14, 2020
redhatCVE-2020-12464Moderate

kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c

Mar 23, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-06/msg00022.html
Third Party Advisory
cdn.kernel.org / pub/linux/kernel/v5.x/ChangeLog-5.6.8
Release NotesVendor Advisory
github.com / torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912b
PatchThird Party Advisory
git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2020/06/msg00011.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2020/06/msg00012.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/06/msg00013.html
Third Party Advisory
lkml.org / lkml/2020/3/23/52
ExploitVendor Advisory
patchwork.kernel.org / patch/11463781
PatchVendor Advisory
security.netapp.com / advisory/ntap-20200608-0001
Third Party Advisory
usn.ubuntu.com / 4387-1
Third Party Advisory
usn.ubuntu.com / 4388-1
Third Party Advisory
usn.ubuntu.com / 4389-1
Third Party Advisory
usn.ubuntu.com / 4390-1
Third Party Advisory
usn.ubuntu.com / 4391-1
Third Party AdvisoryVDB Entry
debian.org / security/2020/dsa-4698
Third Party AdvisoryVDB Entry
debian.org / security/2020/dsa-4699
Third Party AdvisoryVDB Entry