CVE-2023-0797Public exploit

Process crash via crafted TIFF over-read

Published Feb 13, 2023 · Updated Mar 21, 2025

Out-of-bounds read in LibTIFF tiffcrop 4.4.0 and earlier allows attackers to crash the utility by processing a crafted TIFF file. Calls at tools/tiffcrop.c:2903 and 6921 reach _TIFFmemcpy in libtiff/tif_unix.c, where the operation reads beyond a valid buffer. Exploitation requires tiffcrop to process the crafted file; the demonstrated consequence is a segmentation fault that interrupts that process.

CVSS severity6.8
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in LibTIFF tiffcrop 4.4.0 and earlier allows attackers to crash the utility by processing a crafted TIFF file. Calls at tools/tiffcrop.c:2903 and 6921 reach _TIFFmemcpy in libtiff/tif_unix.c, where the operation reads beyond a valid buffer. Exploitation requires tiffcrop to process the crafted file; the demonstrated consequence is a segmentation fault that interrupts that process.

The record

CVE
CVE-2023-0797
Published
Feb 13, 2023
Updated
Mar 21, 2025
Vendor
LibTIFF
Product
LibTIFF
Classifications
CWE-125
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<=4.4.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

LibTIFF · LibTIFFversion=<=4.4.0

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.8GitLab Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/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 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-125Out-of-bounds Read

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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