CVE-2024-26337Public exploit

Process crash via null-address write in s_font

Published Mar 5, 2024 · Updated Nov 26, 2024

Memory access violation in SWFTools 0.9.2 allows attackers to crash swfc by processing a crafted SWFC script file. In s_font at src/swfc.c:1630, font-command processing attempts a write to the null address, causing a segmentation fault and abort. The attacker must cause the command-line utility to process the crafted script; published evidence demonstrates only termination of that process.

CVSS severity4.3
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory access violation in SWFTools 0.9.2 allows attackers to crash swfc by processing a crafted SWFC script file. In s_font at src/swfc.c:1630, font-command processing attempts a write to the null address, causing a segmentation fault and abort. The attacker must cause the command-line utility to process the crafted script; published evidence demonstrates only termination of that process.

The record

CVE
CVE-2024-26337
Published
Mar 5, 2024
Updated
Nov 26, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Mar 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 26, 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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

No sourced classifications are available.

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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