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Vulnerability record · CVE-2018-11555 · published 30 May 2018

CVE-2018-11555: Littlecms little cms out-of-bounds write vulnerability

Littlecms · Little Cms

tificc in Little CMS 2.9 has an out-of-bounds write in the PrecalculatedXFORM function in cmsxform.c in liblcms2.a via a crafted TIFF file. NOTE: Little CMS developers do consider this a vulnerability because the issue is based on an sample program using LIBTIFF and do not apply to the lcms2 library, lcms2 does not depends on LIBTIFF other than to build sample programs, and the issue cannot be reproduced on the lcms2 library.”

7.8 CVSS 3.0 High EPSS 1.1% · top 36.6% CWE-787 · Out-of-bounds write
7.8CVSS 3.0 base score, v2 6.8
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

tificc in Little CMS 2.9 has an out-of-bounds write in the PrecalculatedXFORM function in cmsxform.c in liblcms2.a via a crafted TIFF file. NOTE: Little CMS developers do consider this a vulnerability because the issue is based on an sample program using LIBTIFF and do not apply to the lcms2 library, lcms2 does not depends on LIBTIFF other than to build sample programs, and the issue cannot be reproduced on the lcms2 library.”

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/mm2/Little-CMS/issues/167 Third Party Advisory
https://github.com/xiaoqx/pocs/tree/master/cms Third Party Advisory
https://github.com/mm2/Little-CMS/issues/167 Third Party Advisory
https://github.com/xiaoqx/pocs/tree/master/cms Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-11555), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.