CVE-2020-24222Public exploit

Local code execution via misaligned YUV buffer access

Published Aug 11, 2023 · Updated Oct 9, 2024

Heap-buffer overflow in rockcarry ffjpeg 1.0.0 and earlier allows local users to execute arbitrary code through a crafted JPEG file. jfif_decode derives chroma offsets from image dimensions and reads beyond an allocated YUV buffer during yuv_to_rgb conversion when ALIGN calculations diverge. Local access to invoke the decoder is required, and successful exploitation runs with the decoder process's privileges.

CVSS severity7.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-buffer overflow in rockcarry ffjpeg 1.0.0 and earlier allows local users to execute arbitrary code through a crafted JPEG file. jfif_decode derives chroma offsets from image dimensions and reads beyond an allocated YUV buffer during yuv_to_rgb conversion when ALIGN calculations diverge. Local access to invoke the decoder is required, and successful exploitation runs with the decoder process's privileges.

The record

CVE
CVE-2020-24222
Published
Aug 11, 2023
Updated
Oct 9, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

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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