CVE-2026-93589Network attack vector

Process crash via zero ticks-per-second divisor

Published Sep 18, 2026 · Updated Sep 18, 2026

Divide-by-zero in ImageMagick before 7.1.2-31 and before 6.9.13-56 allows remote attackers to crash FLIF encoding. The FLIF encoder uses an incorrect ticks-per-second value from the image as a divisor without rejecting zero, terminating the encoding process. The vulnerable path must encode FLIF output; the reported consequence is a process crash without confidentiality or integrity impact.

CVSS severity6.3
Medium
EPSS probability0.34%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Divide-by-zero in ImageMagick before 7.1.2-31 and before 6.9.13-56 allows remote attackers to crash FLIF encoding. The FLIF encoder uses an incorrect ticks-per-second value from the image as a divisor without rejecting zero, terminating the encoding process. The vulnerable path must encode FLIF output; the reported consequence is a process crash without confidentiality or integrity impact.

The record

CVE
CVE-2026-93589
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
ImageMagick Studio LLC
Product
ImageMagick
Classifications
CWE-369, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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 <6.9.13-56
  2. Affected versionversion=0 <7.1.2-31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ImageMagick Studio LLC · ImageMagickversion=0 <6.9.13-56; version=0 <7.1.2-31

Published CVSS scores

3.7GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
6.3VulnCheckCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-369Divide By Zero
T1499.004Application or System Exploitation

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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