CVE-2022-28042Public exploitNetwork attack vector

Process crash via unchecked JPEG Huffman index

Published Apr 15, 2022 · Updated Aug 3, 2024

Heap use-after-free in stb_image.h 2.27 allows attackers to crash a consuming process by supplying a crafted JPEG file. During JPEG Huffman decoding, a malformed code produces an out-of-range index that stbi__jpeg_huff_decode uses without a bounds check after the input buffer has been freed. The application must pass the attacker-controlled image to the embedded decoder; the public reproducer establishes a process abort, while further code-execution consequences have not been demonstrated.

CVSS severity8.8
High
EPSS probability1.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap use-after-free in stb_image.h 2.27 allows attackers to crash a consuming process by supplying a crafted JPEG file. During JPEG Huffman decoding, a malformed code produces an out-of-range index that stbi__jpeg_huff_decode uses without a bounds check after the input buffer has been freed. The application must pass the attacker-controlled image to the embedded decoder; the public reproducer establishes a process abort, while further code-execution consequences have not been demonstrated.

The record

CVE
CVE-2022-28042
Published
Apr 15, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-416Use After Free

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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