CVE-2026-30141Public exploitNetwork attack vector

Code execution via unchecked LZW array indexes

Published Jun 9, 2026 · Updated Jun 9, 2026

Buffer overflow in bitbank2 AnimatedGIF 2.2.0 allows remote attackers to crash applications or execute arbitrary code via a crafted GIF file. DecodeLZW uses unchecked LZW code and pDraw->iTBD indexes while decoding compressed data, permitting out-of-bounds dictionary access and output-buffer writes. Exploitation requires an application using the library to process the attacker-supplied GIF; successful corruption crashes that process or executes code in its context.

CVSS severity9.8
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in bitbank2 AnimatedGIF 2.2.0 allows remote attackers to crash applications or execute arbitrary code via a crafted GIF file. DecodeLZW uses unchecked LZW code and pDraw->iTBD indexes while decoding compressed data, permitting out-of-bounds dictionary access and output-buffer writes. Exploitation requires an application using the library to process the attacker-supplied GIF; successful corruption crashes that process or executes code in its context.

The record

CVE
CVE-2026-30141
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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?

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

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

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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