CVE-2026-33853

Application crash via merged-upsample scanline skipping

Published Mar 24, 2026 · Updated Mar 24, 2026

NULL pointer dereference in MolotovCherry Android-ImageMagick7 before 7.1.2-10 allows local users to crash image processing. The jpeg_skip_scanlines() path treats a merged upsampler as the non-merged private structure and overwrites an IDCT method pointer; its discard path can also pass NULL into jcopy_sample_rows(). Exploitation requires user interaction and merged upsampling while skipping scanlines in a crafted 4:2:2 or 4:2:0 JPEG, interrupting the calling application.

CVSS severity5.5
Medium
EPSS probability0.16%
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 MolotovCherry Android-ImageMagick7 before 7.1.2-10 allows local users to crash image processing. The jpeg_skip_scanlines() path treats a merged upsampler as the non-merged private structure and overwrites an IDCT method pointer; its discard path can also pass NULL into jcopy_sample_rows(). Exploitation requires user interaction and merged upsampling while skipping scanlines in a crafted 4:2:2 or 4:2:0 JPEG, interrupting the calling application.

The record

CVE
CVE-2026-33853
Published
Mar 24, 2026
Updated
Mar 24, 2026
Vendor
MolotovCherry
Product
Android-ImageMagick7
Classifications
CWE-476, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.1.2-10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MolotovCherry · Android-ImageMagick7version=0 <7.1.2-10

Published CVSS scores

7.5National Institute of Standards and TechnologyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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