CVE-2022-32202Public exploit

Local denial of service via NULL pointer dereference

Published Jun 1, 2022 · Updated Aug 3, 2024

NULL pointer dereference in libjpeg 1.63 allows local users to interrupt image processing via a crafted JPEG file. LineBuffer::FetchRegion dereferences a missing scan-line buffer when reconstruction finds no valid scan and no data is available, causing a process crash. The attack requires local execution of the libjpeg decoder and user-supplied malformed image input; impact is limited to service interruption of the affected process.

CVSS severity5.5
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in libjpeg 1.63 allows local users to interrupt image processing via a crafted JPEG file. LineBuffer::FetchRegion dereferences a missing scan-line buffer when reconstruction finds no valid scan and no data is available, causing a process crash. The attack requires local execution of the libjpeg decoder and user-supplied malformed image input; impact is limited to service interruption of the affected process.

The record

CVE
CVE-2022-32202
Published
Jun 1, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.3NVDAV:N/AC:M/Au:N/C:N/I:N/A:P

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

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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