CVE-2023-47997Public exploitNetwork attack vector

Application hang via zero-step TIFF loop

Published Jan 9, 2024 · Updated Nov 4, 2025

Infinite loop in FreeImage 3.18.0 allows remote attackers to hang the consuming application via a crafted TIFF image. The Load loop in PluginTIFF.cpp advances src_bits by bytes-per-channel, but a zero value leaves the pointer unchanged after AssignPixel takes its release-build default path. Exploitation requires an application to open the crafted file; the affected process runs indefinitely until terminated, with no reported data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Infinite loop in FreeImage 3.18.0 allows remote attackers to hang the consuming application via a crafted TIFF image. The Load loop in PluginTIFF.cpp advances src_bits by bytes-per-channel, but a zero value leaves the pointer unchanged after AssignPixel takes its release-build default path. Exploitation requires an application to open the crafted file; the affected process runs indefinitely until terminated, with no reported data disclosure or modification.

The record

CVE
CVE-2023-47997
Published
Jan 9, 2024
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-835, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5CISA-ADPCVSS:3.1/AV:N/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 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-835Loop with Unreachable Exit Condition ('Infinite Loop')
T1499Endpoint Denial of Service

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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