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NVD / CVE Program· CNA Linux

CVE-2023-52919: nfc: nci: fix possible NULL pointer dereference in send_acknowledge()

MediumCVSS 5.5 · v3.1—No exploit Fix available

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: 0.20% (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 2b2edf089df3a69f0072c6e71563394c5a94e62e, 5622592f8f74ae3e594379af02e64ea84772d0dd, 76050b0cc5a72e0c7493287b7e18e1cb9e3c4612.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2b2edf089df3a69f0072c6e71563394c5a94e62e, 5622592f8f74ae3e594379af02e64ea84772d0dd, 76050b0cc5a72e0c7493287b7e18e1cb9e3c4612 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: nfc: nci: fix possible NULL pointer dereference in send_acknowledge() Handle memory allocation failure from nci_skb_alloc() (calling alloc_skb()) to avoid possible NULL pointer dereference.

Published
Oct 22, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 10th 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-2023-52919

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

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

    • 3.11affected
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before 2b2edf089df3a69f0072c6e71563394c5a94e62eaffected · git
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before 5622592f8f74ae3e594379af02e64ea84772d0ddaffected · git
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before 76050b0cc5a72e0c7493287b7e18e1cb9e3c4612affected · git
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before c95fa5b20fe03609e0894656fa43c18045b5097eaffected · git
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before ffdc881f68073ff86bf21afb9bb954812e8278beaffected · git
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before d7dbdbe3800a908eecd4975c31be47dd45e2104aaffected · git
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before bb6cacc439ddd2cd51227ab193f4f91cfc7f014faffected · git
    • 391d8a2da787257aeaf952c974405b53926e3fb3 and later · before 7937609cd387246aed994e81aa4fa951358fba41affected · git
    • before 3.11not affected · semver
Affected versions · NVD (8)

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

  • linux linux kernel3.11 and later · before 4.14.328
  • linux linux kernel4.15 and later · before 4.19.297
  • linux linux kernel4.20 and later · before 5.4.259
  • linux linux kernel5.5 and later · before 5.10.199
  • linux linux kernel5.11 and later · before 5.15.137
  • linux linux kernel5.16 and later · before 6.1.60
  • linux linux kernel6.2 and later · before 6.5.9
  • linux linux kernel6.6

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 6.5.10-16.5.10-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-azurebefore 6.4.0-150600.8.17.26.4.0-150600.8.17.2
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.30.1.150600.12.12.66.4.0-150600.23.30.1.150600.12.12.6
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-rtbefore 6.4.0-150600.10.17.16.4.0-150600.10.17.1
openSUSE:Leap 15.6kernel-rt_debugbefore 6.4.0-150600.10.17.16.4.0-150600.10.17.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-source-azurebefore 6.4.0-150600.8.17.16.4.0-150600.8.17.1
openSUSE:Leap 15.6kernel-source-rtbefore 6.4.0-150600.10.17.16.4.0-150600.10.17.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
openSUSE:Leap 15.6kernel-syms-azurebefore 6.4.0-150600.8.17.16.4.0-150600.8.17.1
openSUSE:Leap 15.6kernel-syms-rtbefore 6.4.0-150600.10.17.16.4.0-150600.10.17.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_6before 1-150600.13.3.51-150600.13.3.5
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6-RT_Update_5before 1-150600.1.3.11-150600.1.3.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6kernel-64kbbefore 6.4.0-150600.23.30.16.4.0-150600.23.30.1

+26

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-2024-50063Oct 21, 2024 · bpf: Prevent tail call between progs attached to different hooks
    31Monitor
  • ← EarlierCVE-2023-52918Oct 22, 2024 · media: pci: cx23885: check cx23885_vdev_init() return
    22Monitor
  • Later →CVE-2024-50066Oct 23, 2024 · mm/mremap: fix move_normal_pmd/retract_page_tables race
    28Monitor

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 Linux2b2edf089df3a69f0072c6e71563394c5a94e62eVendor (CNA)
Linux Linux5622592f8f74ae3e594379af02e64ea84772d0ddVendor (CNA)
Linux Linux76050b0cc5a72e0c7493287b7e18e1cb9e3c4612Vendor (CNA)
Linux Linux7937609cd387246aed994e81aa4fa951358fba41Vendor (CNA)
Linux Linuxbb6cacc439ddd2cd51227ab193f4f91cfc7f014fVendor (CNA)
Linux Linuxc95fa5b20fe03609e0894656fa43c18045b5097eVendor (CNA)
Linux Linuxd7dbdbe3800a908eecd4975c31be47dd45e2104aVendor (CNA)
Linux Linuxffdc881f68073ff86bf21afb9bb954812e8278beVendor (CNA)
debian:linux6.1.64-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.30.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.30.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-azure6.4.0-150600.8.17.2 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.30.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.30.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.30.1.150600.12.12.6 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-rt6.4.0-150600.10.17.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-rt_debug6.4.0-150600.10.17.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-azure6.4.0-150600.8.17.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source-rt6.4.0-150600.10.17.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-azure6.4.0-150600.8.17.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms-rt6.4.0-150600.10.17.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.30.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-azure6.4.0-150600.8.17.2 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150600.23.30.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.30.1.150600.12.12.6 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-livepatch-SLE15-SP6-RT_Update_51-150600.1.3.1 · SUSE:Linux Enterprise Live Patching 15 SP6Package registry (OSV)
suse:kernel-rt6.4.0-150600.10.17.1 · SUSE:Real Time Module 15 SP6Package registry (OSV)
suse:kernel-rt_debug6.4.0-150600.10.17.1 · SUSE:Real Time Module 15 SP6Package registry (OSV)
suse:kernel-source6.4.0-150600.23.30.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:kernel-source-azure6.4.0-150600.8.17.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP6Package registry (OSV)

+3

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.

National notice (Türkiye Cybersecurity Directorate / USOM)

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

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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-476 · NULL Pointer Dereference

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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (7 more)

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

All records