CVE-2026-31795Public exploit

Memory corruption via mismatched LUT channel count

Published Mar 10, 2026 · Updated Mar 10, 2026

Stack-based buffer overflow in iccDEV before 2.3.1.5 allows context-dependent attackers to corrupt memory via a crafted ICC profile. CIccXform3DLut::Begin() fails to verify that a LUT output-channel count matches its output color space, so Apply() writes past the XYZbp stack buffer. A user must process the profile with an affected application, after which the overwrite can crash the process or corrupt stack memory.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in iccDEV before 2.3.1.5 allows context-dependent attackers to corrupt memory via a crafted ICC profile. CIccXform3DLut::Begin() fails to verify that a LUT output-channel count matches its output color space, so Apply() writes past the XYZbp stack buffer. A user must process the profile with an affected application, after which the overwrite can crash the process or corrupt stack memory.

The record

CVE
CVE-2026-31795
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
International Color Consortium
Product
iccDEV
Classifications
CWE-787, CWE-121, CWE-120, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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?

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

  1. Affected versionversion=< 2.3.1.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

International Color Consortium · iccDEVversion=< 2.3.1.5

Published CVSS scores

7.8GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution
T1204.002Malicious File

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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