CVE-2026-52490Public exploit

Code execution via wrapped section-count multiplication

Published Aug 24, 2026 · Updated Aug 24, 2026

Integer overflow in libtiff tiffcrop 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows attackers to execute arbitrary code via crafted -S dimensions. The process_command_opts() routine multiplies unsigned 32-bit column and row values before comparing the result with MAX_SECTIONS, so a wrapped product bypasses the 32-section limit while oversized dimensions remain stored. Exploitation requires control of tiffcrop command-line options; the public reproducer demonstrates the validation bypass, but it does not disclose the subsequent code-execution chain.

CVSS severity9.8
Critical
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in libtiff tiffcrop 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows attackers to execute arbitrary code via crafted -S dimensions. The process_command_opts() routine multiplies unsigned 32-bit column and row values before comparing the result with MAX_SECTIONS, so a wrapped product bypasses the 32-section limit while oversized dimensions remain stored. Exploitation requires control of tiffcrop command-line options; the public reproducer demonstrates the validation bypass, but it does not disclose the subsequent code-execution chain.

The record

CVE
CVE-2026-52490
Published
Aug 24, 2026
Updated
Aug 24, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1203
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 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 vectorlocal
Required privilegesUnavailable in this record.

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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
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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