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Vulnerability details: VCID-2a49-ryer-vkhd
Vulnerability ID VCID-2a49-ryer-vkhd
Aliases CVE-2021-44648
Summary Out-of-bounds Write GNOME gdk-pixbuf is vulnerable to a heap-buffer overflow vulnerability when decoding the lzw compressed stream of image data in GIF files with lzw minimum code size equals `12`
Status Published
Exploitability 0.5
Weighted Severity 6.6
Risk 3.3
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-125 Out-of-bounds Read
System Score Found at
cvssv3 7.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-44648.json
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
epss 0.00153 https://api.first.org/data/v1/epss?cve=CVE-2021-44648
cvssv3.1 7.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-44648.json
https://api.first.org/data/v1/epss?cve=CVE-2021-44648
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44648
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46829
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/136
https://sahildhar.github.io/blogpost/GdkPixbuf-Heap-Buffer-Overflow-in-lzw_decoder_new/
1014600 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1014600
2043722 https://bugzilla.redhat.com/show_bug.cgi?id=2043722
CVE-2021-44648 https://nvd.nist.gov/vuln/detail/CVE-2021-44648
RHSA-2023:2216 https://access.redhat.com/errata/RHSA-2023:2216
USN-5607-1 https://usn.ubuntu.com/5607-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-44648.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: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

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 0.35934
EPSS Score 0.00153
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:49:16.439826+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/gdk-pixbuf/CVE-2021-44648.yml 38.0.0