CVE-2023-47995Public exploitNetwork attack vector

Memory exhaustion via attacker-sized bitmap allocation

Published Jan 9, 2024 · Updated Nov 4, 2025

Excessive memory allocation in FreeImage 3.18.0 allows attackers to exhaust memory and interrupt image processing via a crafted JPEG. FreeImage_AllocateBitmap derives dib_size from attacker-controlled JPEG dimensions and passes the excessive result to FreeImage_Aligned_Malloc. A user or application must process the crafted image; successful exploitation exhausts available memory and can crash or stall the consuming process.

CVSS severity6.5
Medium
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Excessive memory allocation in FreeImage 3.18.0 allows attackers to exhaust memory and interrupt image processing via a crafted JPEG. FreeImage_AllocateBitmap derives dib_size from attacker-controlled JPEG dimensions and passes the excessive result to FreeImage_Aligned_Malloc. A user or application must process the crafted image; successful exploitation exhausts available memory and can crash or stall the consuming process.

The record

CVE
CVE-2023-47995
Published
Jan 9, 2024
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, 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

6.5CISA-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.

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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')
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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