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Vulnerability details: VCID-yxf7-d4h2-4bb4
Vulnerability ID VCID-yxf7-d4h2-4bb4
Aliases CVE-2021-38093
Summary Integer Overflow vulnerability in function filter_robert in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-190 Integer Overflow or Wraparound
System Score Found at
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
epss 0.00658 https://api.first.org/data/v1/epss?cve=CVE-2021-38093
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-38093
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-38093
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-38093
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38093
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/99f8d32129dd233d4eb2efa44678a0bc44869f23
https://trac.ffmpeg.org/ticket/8263
cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:*
CVE-2021-38093 https://nvd.nist.gov/vuln/detail/CVE-2021-38093
USN-6449-1 https://usn.ubuntu.com/6449-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-38093
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/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-2021-38093
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 0.70142
EPSS Score 0.00658
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:35:45.988929+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/6449-1/ 37.0.0