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NVD / CVE Program· CNA redhat

CVE-2023-1073: A memory corruption flaw was found in the Linux kernel’s human interface device (HID) subsystem in how a user inserts a malicious USB device

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.39% (FIRST EPSS).
  • Physical access to the device is required. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: bpftool (AlmaLinux:8) 4.18.0-513.5.1.el8_9, 4.18.0-513.18.1.el8_9; kernel (AlmaLinux:8) 4.18.0-513.18.1.el8_9, 4.18.0-513.5.1.el8_9; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-513.18.1.el8_9, 4.18.0-513.5.1.el8_9.
  • Mentioned 3 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to bpftool (AlmaLinux:8) 4.18.0-513.5.1.el8_9, 4.18.0-513.18.1.el8_9; kernel (AlmaLinux:8) 4.18.0-513.18.1.el8_9, 4.18.0-513.5.1.el8_9; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-513.18.1.el8_9, 4.18.0-513.5.1.el8_9 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A memory corruption flaw was found in the Linux kernel’s human interface device (HID) subsystem in how a user inserts a malicious USB device. This flaw allows a local user to crash or potentially escalate their privileges on the system.

MediumCVSS 6.6 · v3.1—No exploit Fix available
Published
Mar 27, 2023
Updated
Jun 17, 2026
EPSS
0.3% · 32th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-1073

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
redhatenterprise linux
fedoraprojectfedora

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • fedoraproject fedora37
  • linux linux kernelall versions
  • redhat enterprise linux7.0
  • redhat enterprise linux8.0
  • redhat enterprise linux9.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a kernel

    • unknownaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8bpftoolbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8bpftoolbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernelbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernelbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-corebefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-corebefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-cross-headersbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-cross-headersbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-debugbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-debugbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-debug-corebefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-debug-corebefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-debug-develbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-debug-develbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-develbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9
AlmaLinux:8kernel-develbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-docbefore 4.18.0-513.5.1.el8_94.18.0-513.5.1.el8_9
AlmaLinux:8kernel-docbefore 4.18.0-513.18.1.el8_94.18.0-513.18.1.el8_9

+96

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2023-28866Mar 26, 2023 · In the Linux kernel through 6.2.8, net/bluetooth/hci_sync.c allows out-of-bounds access because amp_init1[] and amp_init2[] are supposed to
    21Monitor
  • ← EarlierCVE-2021-3923Mar 27, 2023 · A flaw was found in the Linux kernel's implementation of RDMA over infiniband.
    9Monitor
  • Later →CVE-2023-1074Mar 27, 2023 · A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol.
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:bpftool4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-abi-stablelists4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-core4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-cross-headers4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-core4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-devel4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules-extra4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-devel4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-doc4.18.0-513.5.1.el8_9 · AlmaLinux:8Package registry (OSV)
debian:linux6.1.11-1 · Debian:12Package registry (OSV)
debian:linux-5.105.10.178-3~deb10u1 · Debian:10Package registry (OSV)
red hat:kernel-rt0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-core0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-core0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-debuginfo0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-devel0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-kvm0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-extra0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo-common-x86_640:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-devel0:4.18.0-513.5.1.rt7.307.el8_9 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Physical access to the device is required.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Physical
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

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

nvd-primary

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records