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Vulnerability record · CVE-2018-14550 · published 10 July 2019

CVE-2018-14550: Libpng out-of-bounds write vulnerability

LLibpng · Libpng

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

8.8 CVSS 3.1 High EPSS 3.5% · top 11.1% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 6.8
3.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
12References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
https://github.com/fouzhe/security/tree/master/libpng#stack-buffer-overflow-in-png2pnm-in-function-get_token ExploitPatchThird Party Advisory
https://github.com/glennrp/libpng/issues/246 ExploitPatchThird Party Advisory
https://security.gentoo.org/glsa/201908-02 Third Party Advisory
https://security.netapp.com/advisory/ntap-20221028-0001/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html PatchThird Party Advisory
https://github.com/fouzhe/security/tree/master/libpng#stack-buffer-overflow-in-png2pnm-in-function-get_token ExploitPatchThird Party Advisory
https://github.com/glennrp/libpng/issues/246 ExploitPatchThird Party Advisory
https://security.gentoo.org/glsa/201908-02 Third Party Advisory
https://security.netapp.com/advisory/ntap-20221028-0001/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html PatchThird Party Advisory

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

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Source: NIST National Vulnerability Database (record CVE-2018-14550), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.