CVE-2022-3349

Memory corruption via truncated exFAT allocation size

Published Sep 28, 2022 · Updated Apr 15, 2025

Heap overflow in the exFAT handler in Sony PlayStation 4 and PlayStation 5 allows attackers to corrupt memory via a USB drive. UVFAT_readupcasetable passes a 64-bit size derived from dataLength into a 32-bit heap-allocation parameter, truncating the allocation before sector-sized reads advance through the buffer. Physical access to insert a malformed exFAT drive is required; published evidence establishes memory corruption but not a specific post-corruption primitive.

CVSS severity6.8
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in the exFAT handler in Sony PlayStation 4 and PlayStation 5 allows attackers to corrupt memory via a USB drive. UVFAT_readupcasetable passes a 64-bit size derived from dataLength into a 32-bit heap-allocation parameter, truncating the allocation before sector-sized reads advance through the buffer. Physical access to insert a malformed exFAT drive is required; published evidence establishes memory corruption but not a specific post-corruption primitive.

The record

CVE
CVE-2022-3349
Published
Sep 28, 2022
Updated
Apr 15, 2025
Vendor
Sony Group Corporation
Product
PlayStation 4
Classifications
CWE-787, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Sony Group Corporation · PlayStation 4version=n/a
Sony Group Corporation · PlayStation 5version=n/a

Published CVSS scores

6.8National Vulnerability DatabaseCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1200Hardware Additions

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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