CVE-2022-35089Public exploit

Process crash via out-of-bounds GIF extension read

Published Sep 20, 2022 · Updated May 28, 2025

Heap-buffer overflow in SWFTools gif2swf commit 772e55a2 allows attackers to crash the converter by supplying a crafted GIF file. The getTransparentColor routine reads one byte immediately past a three-byte GIF extension allocation, causing the heap-buffer overflow. A user must invoke gif2swf on the crafted file; the demonstrated and scored consequence is process termination, not data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.30%
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 SWFTools gif2swf commit 772e55a2 allows attackers to crash the converter by supplying a crafted GIF file. The getTransparentColor routine reads one byte immediately past a three-byte GIF extension allocation, causing the heap-buffer overflow. A user must invoke gif2swf on the crafted file; the demonstrated and scored consequence is process termination, not data disclosure or modification.

The record

CVE
CVE-2022-35089
Published
Sep 20, 2022
Updated
May 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 20, 2022CVE publishedPublication date reported by the CVE source.
  2. May 28, 2025Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5NVDCVSS: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.

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

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1204.002Malicious File

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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