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Vulnerability details: VCID-6t3m-jjba-tyb3
Vulnerability ID VCID-6t3m-jjba-tyb3
Aliases CVE-2020-36773
Summary Artifex Ghostscript before 9.53.0 has an out-of-bounds write and use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single character code in a PDF document can map to more than one Unicode code point (e.g., for a ligature).
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-416 Use After Free
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-36773.json
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00106 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
epss 0.00138 https://api.first.org/data/v1/epss?cve=CVE-2020-36773
cvssv3.1 9.8 https://bugs.ghostscript.com/show_bug.cgi?id=702229
ssvc Track https://bugs.ghostscript.com/show_bug.cgi?id=702229
cvssv3.1 9.8 https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
ssvc Track https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
cvssv3.1 8.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 9.8 https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
ssvc Track https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
cvssv3.1 9.8 https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
ssvc Track https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2020-36773
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-36773.json
https://api.first.org/data/v1/epss?cve=CVE-2020-36773
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36773
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2262734 https://bugzilla.redhat.com/show_bug.cgi?id=2262734
cpe:2.3:a:artifex:ghostscript:9.51:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:artifex:ghostscript:9.51:*:*:*:*:*:*:*
cpe:2.3:a:artifex:ghostscript:9.52:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:artifex:ghostscript:9.52:*:*:*:*:*:*:*
cpe:2.3:a:artifex:ghostscript:9.52.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:artifex:ghostscript:9.52.1:*:*:*:*:*:*:*
cpe:2.3:a:artifex:ghostscript:9.53.0:rc1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:artifex:ghostscript:9.53.0:rc1:*:*:*:*:*:*
cpe:2.3:a:artifex:ghostscript:9.53.0:rc2:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:artifex:ghostscript:9.53.0:rc2:*:*:*:*:*:*
CVE-2020-36773 https://nvd.nist.gov/vuln/detail/CVE-2020-36773
gs9530 https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874 https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
show_bug.cgi?id=1177922 https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
show_bug.cgi?id=702229 https://bugs.ghostscript.com/show_bug.cgi?id=702229
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-36773.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

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://bugs.ghostscript.com/show_bug.cgi?id=702229
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

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-05T15:56:53Z/ Found at https://bugs.ghostscript.com/show_bug.cgi?id=702229
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
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

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-05T15:56:53Z/ Found at https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
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

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-05T15:56:53Z/ Found at https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
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

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-02-05T15:56:53Z/ Found at https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-36773
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

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.2938
EPSS Score 0.00106
Published At Sept. 20, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:44:43.826420+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2020/36xxx/CVE-2020-36773.json 37.0.0