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NVD / CVE Program· CNA Linux

CVE-2023-52507: nfc: nci: assert requested protocol is valid

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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 25dd54b95abfdca423b65a4ee620a774777d8213, 2c231a247a1d1628e41fa1eefd1a5307c41c5f53, 354a6e707e29cb0c007176ee5b8db8be7bd2dee0.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 25dd54b95abfdca423b65a4ee620a774777d8213, 2c231a247a1d1628e41fa1eefd1a5307c41c5f53, 354a6e707e29cb0c007176ee5b8db8be7bd2dee0 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: assert requested protocol is valid The protocol is used in a bit mask to determine if the protocol is supported. Assert the provided protocol is less than the maximum defined so it doesn't potentially perform a shift-out-of-bounds and provide a clearer error for undefined protocols vs unsupported ones.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Mar 2, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 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-2023-52507

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 kernel3.2 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 5.15.136
  • linux linux kernel5.16 and later · before 6.1.59
  • linux linux kernel6.2 and later · before 6.5.8
  • linux linux kernel6.6

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

    • 3.2affected
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 2c231a247a1d1628e41fa1eefd1a5307c41c5f53affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before a686f84101680b8442181a8846fbd3c934653729affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 95733ea130e35ef9ec5949a5908dde3feaba92cbaffected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before a424807d860ba816aaafc3064b46b456361c0802affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 25dd54b95abfdca423b65a4ee620a774777d8213affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 853dda54ba59ea70d5580a298b7ede4707826848affected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 6584eba7688dcf999542778b07f63828c21521daaffected · git
    • 6a2968aaf50c7a22fced77a5e24aa636281efca8 and later · before 354a6e707e29cb0c007176ee5b8db8be7bd2dee0affected · git
    • before 3.2not 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 6.5.8-16.5.8-1
SUSE:Linux Enterprise Real Time 12 SP5kernel-rtbefore 4.12.14-10.194.14.12.14-10.194.1
SUSE:Linux Enterprise Real Time 12 SP5kernel-rt_debugbefore 4.12.14-10.194.14.12.14-10.194.1
SUSE:Linux Enterprise Real Time 12 SP5kernel-source-rtbefore 4.12.14-10.194.14.12.14-10.194.1
SUSE:Linux Enterprise Real Time 12 SP5kernel-syms-rtbefore 4.12.14-10.194.14.12.14-10.194.1

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-2023-52505Mar 2, 2024 · phy: lynx-28g: serialize concurrent phy_set_mode_ext() calls to shared registers
    18Monitor
  • ← EarlierCVE-2023-52506Mar 2, 2024 · LoongArch: Set all reserved memblocks on Node#0 at initialization
    22Monitor
  • Later →CVE-2023-52508Mar 2, 2024 · nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()
    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 Linux25dd54b95abfdca423b65a4ee620a774777d8213Vendor (CNA)
Linux Linux2c231a247a1d1628e41fa1eefd1a5307c41c5f53Vendor (CNA)
Linux Linux354a6e707e29cb0c007176ee5b8db8be7bd2dee0Vendor (CNA)
Linux Linux6584eba7688dcf999542778b07f63828c21521daVendor (CNA)
Linux Linux853dda54ba59ea70d5580a298b7ede4707826848Vendor (CNA)
Linux Linux95733ea130e35ef9ec5949a5908dde3feaba92cbVendor (CNA)
Linux Linuxa424807d860ba816aaafc3064b46b456361c0802Vendor (CNA)
Linux Linuxa686f84101680b8442181a8846fbd3c934653729Vendor (CNA)
debian:linux6.1.64-1 · Debian:12Package registry (OSV)
suse:kernel-rt4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package registry (OSV)
suse:kernel-rt_debug4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package registry (OSV)
suse:kernel-source-rt4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package registry (OSV)
suse:kernel-syms-rt4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package 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.

No history yet (it accumulates with the daily EPSS job).

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).

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

  • 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
high · data can be read
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
High
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:H/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 (7 more)

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

All records