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Fencer Vulns
high 8.4

CVE-2016-20022 json

In the Linux kernel before 4.8, usb_parse_endpoint in drivers/usb/core/config.c does not validate the wMaxPacketSize field of an endpoint d…

published 2024-06-27 2 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10787

cvss
8.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

In the Linux kernel before 4.8, usb_parse_endpoint in drivers/usb/core/config.c does not validate the wMaxPacketSize field of an endpoint descriptor. NOTE: This vulnerability only affects products that are no longer supported by the supplier.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.7.4-1

debian advisories DEBIAN-CVE-2016-20022

  • kernel-ec2 SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.159.1
  • kernel-xen SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.159.1
  • kernel-syms SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.159.1
  • kernel-trace SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.159.1
  • kernel-source SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.159.1
  • kernel-default SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.159.1

suse advisories SUSE-SU-2024:2895-1

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-2016-20022 updated cvss 6.2

kernel: USB: improper validation of wMaxPacketValue entries in endpoint descriptors

  • 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, python-perf, kernel-kdump, +8 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernel
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

References

Sources

Fencer Vulns 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.