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Vulnerability details: VCID-663w-wmsg-zkc5
Vulnerability ID VCID-663w-wmsg-zkc5
Aliases CVE-2018-14550
GHSA-qwwr-qc2p-6283
Summary Out-of-bounds Write An issue has been found in third-party PNM decoding associated with libpng It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-787 Out-of-bounds Write
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-121 Stack-based Buffer Overflow
System Score Found at
cvssv3 7.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14550.json
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
epss 0.01778 https://api.first.org/data/v1/epss?cve=CVE-2018-14550
cvssv3 7.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-qwwr-qc2p-6283
cvssv3.1 8.8 https://github.com/fouzhe/security/tree/master/libpng#stack-buffer-overflow-in-png2pnm-in-function-get_token
generic_textual HIGH https://github.com/fouzhe/security/tree/master/libpng#stack-buffer-overflow-in-png2pnm-in-function-get_token
cvssv3.1 8.8 https://github.com/glennrp/libpng
generic_textual HIGH https://github.com/glennrp/libpng
cvssv3.1 8.8 https://github.com/glennrp/libpng/issues/246
generic_textual HIGH https://github.com/glennrp/libpng/issues/246
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-14550
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-14550
cvssv3.1 8.8 https://security.gentoo.org/glsa/201908-02
generic_textual HIGH https://security.gentoo.org/glsa/201908-02
cvssv3.1 8.8 https://security.netapp.com/advisory/ntap-20221028-0001
generic_textual HIGH https://security.netapp.com/advisory/ntap-20221028-0001
cvssv3.1 8.8 https://snyk.io/vuln/SNYK-UPSTREAM-LIBPNG-1043612
generic_textual HIGH https://snyk.io/vuln/SNYK-UPSTREAM-LIBPNG-1043612
cvssv3.1 8.8 https://www.oracle.com/security-alerts/cpuApr2021.html
generic_textual HIGH https://www.oracle.com/security-alerts/cpuApr2021.html
cvssv3.1 8.8 https://www.oracle.com/security-alerts/cpuoct2021.html
generic_textual HIGH https://www.oracle.com/security-alerts/cpuoct2021.html
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14550.json
https://api.first.org/data/v1/epss?cve=CVE-2018-14550
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14550
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/fouzhe/security/tree/master/libpng#stack-buffer-overflow-in-png2pnm-in-function-get_token
https://github.com/glennrp/libpng
https://github.com/glennrp/libpng/issues/246
https://security.gentoo.org/glsa/201908-02
https://security.netapp.com/advisory/ntap-20221028-0001
https://security.netapp.com/advisory/ntap-20221028-0001/
https://snyk.io/vuln/SNYK-UPSTREAM-LIBPNG-1043612
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com/security-alerts/cpuoct2021.html
1608800 https://bugzilla.redhat.com/show_bug.cgi?id=1608800
CVE-2018-14550 https://nvd.nist.gov/vuln/detail/CVE-2018-14550
GHSA-qwwr-qc2p-6283 https://github.com/advisories/GHSA-qwwr-qc2p-6283
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14550.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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none
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

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low

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/fouzhe/security/tree/master/libpng#stack-buffer-overflow-in-png2pnm-in-function-get_token
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/glennrp/libpng
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/glennrp/libpng/issues/246
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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high

low

none

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none

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-14550
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

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none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://security.gentoo.org/glsa/201908-02
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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high

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none

high

low

none

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none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://security.netapp.com/advisory/ntap-20221028-0001
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://snyk.io/vuln/SNYK-UPSTREAM-LIBPNG-1043612
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.oracle.com/security-alerts/cpuApr2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.oracle.com/security-alerts/cpuoct2021.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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none
Exploit Prediction Scoring System (EPSS)
Percentile 0.82623
EPSS Score 0.01778
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:48:34.004059+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/libpng/CVE-2018-14550.yml 38.0.0