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NVD / CVE Program· CNA Linux

CVE-2024-46676: nfc: pn533: Add poll mod list filling check

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: 0.24% (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 56ad559cf6d87f250a8d203b555dfc3716afa946, 64513d0e546a1f19e390f7e5eba3872bfcbdacf5, 7535db0624a2dede374c42040808ad9a9101d723.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 56ad559cf6d87f250a8d203b555dfc3716afa946, 64513d0e546a1f19e390f7e5eba3872bfcbdacf5, 7535db0624a2dede374c42040808ad9a9101d723 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: pn533: Add poll mod list filling check In case of im_protocols value is 1 and tm_protocols value is 0 this combination successfully passes the check 'if (!im_protocols && !tm_protocols)' in the nfc_start_poll(). But then after pn533_poll_create_mod_list() call in pn533_start_poll() poll mod list will remain empty and dev->poll_mod_count will remain 0 which lead to division by zero. Normally no im protocol has value 1 in the mask, so this combination is not expected by driver. But these protocol values actually come from userspace via Netlink interface (NFC_CMD_START_POLL operation). So a broken or malicious program may pass a message containing a "bad" combination of protocol parameter values so that dev->poll_mod_count is not incremented inside pn533_poll_create_mod_list(), thus leading to division by zero. Call trace looks like: nfc_genl_start_poll() nfc_start_poll() ->start_poll() pn533_start_poll() Add poll mod list filling check. Found by Linux Verification Center (linuxtesting.org) with SVACE.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 13, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 15th 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-2024-46676

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 kernel3.12 and later · before 5.4.283
  • linux linux kernel5.5 and later · before 5.10.225
  • linux linux kernel5.11 and later · before 5.15.166
  • linux linux kernel5.16 and later · before 6.1.108
  • linux linux kernel6.2 and later · before 6.6.49
  • linux linux kernel6.7 and later · before 6.10.8
  • linux linux kernel6.11

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

    • 3.12affected
    • dfccd0f580445d176acea174175b3e6518cc91f7 and later · before c5e05237444f32f6cfe5d907603a232c77a08b31affected · git
    • dfccd0f580445d176acea174175b3e6518cc91f7 and later · before 8ddaea033de051ed61b39f6b69ad54a411172b33affected · git
    • dfccd0f580445d176acea174175b3e6518cc91f7 and later · before 7535db0624a2dede374c42040808ad9a9101d723affected · git
    • dfccd0f580445d176acea174175b3e6518cc91f7 and later · before 7ecd3dd4f8eecd3309432156ccfe24768e009ec4affected · git
    • dfccd0f580445d176acea174175b3e6518cc91f7 and later · before 56ad559cf6d87f250a8d203b555dfc3716afa946affected · git
    • dfccd0f580445d176acea174175b3e6518cc91f7 and later · before 64513d0e546a1f19e390f7e5eba3872bfcbdacf5affected · git
    • dfccd0f580445d176acea174175b3e6518cc91f7 and later · before febccb39255f9df35527b88c953b2e0deae50e53affected · git
    • before 3.12not affected · semver
    • 5.4.283 and later · up to and including 5.4.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.112-16.1.112-1
Debian:13linuxbefore 6.10.9-16.10.9-1

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-2024-46674Sep 13, 2024 · usb: dwc3: st: fix probed platform device ref count on probe error path
    31Monitor
  • ← EarlierCVE-2024-46675Sep 13, 2024 · usb: dwc3: core: Prevent USB core invalid event buffer address access
    22Monitor
  • Later →CVE-2024-46677Sep 13, 2024 · gtp: fix a potential NULL pointer dereference
    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 Linux56ad559cf6d87f250a8d203b555dfc3716afa946Vendor (CNA)
Linux Linux64513d0e546a1f19e390f7e5eba3872bfcbdacf5Vendor (CNA)
Linux Linux7535db0624a2dede374c42040808ad9a9101d723Vendor (CNA)
Linux Linux7ecd3dd4f8eecd3309432156ccfe24768e009ec4Vendor (CNA)
Linux Linux8ddaea033de051ed61b39f6b69ad54a411172b33Vendor (CNA)
Linux Linuxc5e05237444f32f6cfe5d907603a232c77a08b31Vendor (CNA)
Linux Linuxfebccb39255f9df35527b88c953b2e0deae50e53Vendor (CNA)
debian:linux6.1.112-1 · Debian:12Package 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.

  • CVE-2024-26945135 days apartcrypto: iaa - Fix nr_cpus < nr_iaa case
    33Monitor
  • CVE-2024-467325 days apartdrm/amd/display: Assign linear_pitch_alignment even for VM
    22Monitor
  • CVE-2024-467725 days apartdrm/amd/display: Check denominator crb_pipes before used
    22Monitor
  • CVE-2024-467735 days apartdrm/amd/display: Check denominator pbn_div before used
    22Monitor
  • CVE-2024-4680614 days apartdrm/amdgpu: Fix the warning division or modulo by zero
    22Monitor
  • CVE-2024-4388918 days apartpadata: Fix possible divide-by-0 panic in padata_mt_helper()
    22Monitor

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
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-369 · Divide By Zero

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.

Change log

  1. Fix✗ → ✓

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

References

Show all references (8 more)

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

All records