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NVD / CVE Program· CNA Linux

CVE-2023-52878: can: dev: can_put_echo_skb(): don't crash kernel if can_priv::echo_skb is accessed out of bounds

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.23% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 0d30931f1fa0fb893fb7d5dc32b6b7edfb775be4, 53c468008a7c9ca3f5fc985951f35ec2acae85bc, 6411959c10fe917288cbb1038886999148560057.

Low priority for now. Upgrade to Linux Linux 0d30931f1fa0fb893fb7d5dc32b6b7edfb775be4, 53c468008a7c9ca3f5fc985951f35ec2acae85bc, 6411959c10fe917288cbb1038886999148560057 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

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_put_echo_skb(): don't crash kernel if can_priv::echo_skb is accessed out of bounds If the "struct can_priv::echoo_skb" is accessed out of bounds, this would cause a kernel crash. Instead, issue a meaningful warning message and return with an error.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 21, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

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-2023-52878

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

Affected versions

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

  • linux linux kernel2.6.33 and later · before 5.15.139
  • linux linux kernel5.16 and later · before 6.1.63
  • linux linux kernel6.2 and later · before 6.5.12
  • linux linux kernel6.6 and later · before 6.6.2

Versions reported by the vendor

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

  • Linux Linux

    • 2.6.33affected
    • a6e4bc5304033e434fabccabb230b8e9ff55d76f and later · before 826120c9ba68f2d0dbae58e99013929c883d1444affected · git
    • a6e4bc5304033e434fabccabb230b8e9ff55d76f and later · before 0d30931f1fa0fb893fb7d5dc32b6b7edfb775be4affected · git
    • a6e4bc5304033e434fabccabb230b8e9ff55d76f and later · before 53c468008a7c9ca3f5fc985951f35ec2acae85bcaffected · git
    • a6e4bc5304033e434fabccabb230b8e9ff55d76f and later · before 8ab67da060157362b2e0926692c659808784708faffected · git
    • a6e4bc5304033e434fabccabb230b8e9ff55d76f and later · before 6411959c10fe917288cbb1038886999148560057affected · git
    • before 2.6.33not affected · semver
    • 5.15.139 and later · up to and including 5.15.*not affected · semver
    • 6.1.63 and later · up to and including 6.1.*not affected · semver
    • 6.5.12 and later · up to and including 6.5.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.64-16.1.64-1
Debian:13linuxbefore 6.5.13-16.5.13-1
Red Hat:rhel_eus:9.4::appstreambpftool-debuginfobefore 0:7.3.0-427.66.1.el9_40:7.3.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-develbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debug-devel-matchedbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-develbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-64k-devel-matchedbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-develbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debug-devel-matchedbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-aarch64before 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-ppc64lebefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-s390xbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-debuginfo-common-x86_64before 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-develbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-devel-matchedbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-docbefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-rt-debug-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-rt-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-tools-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4
Red Hat:rhel_eus:9.4::appstreamkernel-zfcpdump-debuginfobefore 0:5.14.0-427.66.1.el9_40:5.14.0-427.66.1.el9_4

+56

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2023-52876May 21, 2024 · clk: mediatek: clk-mt7629-eth: Add check for mtk_alloc_clk_data
    22Monitor
  • ← EarlierCVE-2023-52877May 21, 2024 · usb: typec: tcpm: Fix NULL pointer dereference in tcpm_pd_svdm()
    22Monitor
  • Later →CVE-2023-52879May 21, 2024 · tracing: Have trace_event_file have ref counters
    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
Linux Linux0d30931f1fa0fb893fb7d5dc32b6b7edfb775be4Vendor (CNA)
Linux Linux53c468008a7c9ca3f5fc985951f35ec2acae85bcVendor (CNA)
Linux Linux6411959c10fe917288cbb1038886999148560057Vendor (CNA)
Linux Linux826120c9ba68f2d0dbae58e99013929c883d1444Vendor (CNA)
Linux Linux8ab67da060157362b2e0926692c659808784708fVendor (CNA)
debian:linux6.1.64-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-427.66.1.el9_4 · Red Hat:rhel_eus:9.4::appstreamPackage 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.

No commit or PR link among the references.

Credits

All researchers

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).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records