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Vulnerability details: VCID-4797-5n6w-3bhx
Vulnerability ID VCID-4797-5n6w-3bhx
Aliases CVE-2020-13904
Summary FFmpeg 2.8 and 4.2.3 has a use-after-free via a crafted EXTINF duration in an m3u8 file because parse_playlist in libavformat/hls.c frees a pointer, and later that pointer is accessed in av_probe_input_format3 in libavformat/format.c.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
epss 0.00467 https://api.first.org/data/v1/epss?cve=CVE-2020-13904
cvssv3.1 5.4 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-13904
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2020-13904
archlinux High https://security.archlinux.org/AVG-1180
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-13904
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13390
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17539
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17542
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12284
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13904
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20448
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20902
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2
https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org/
https://security.gentoo.org/glsa/202007-58
https://trac.ffmpeg.org/ticket/8673
https://www.debian.org/security/2020/dsa-4722
ASA-202007-4 https://security.archlinux.org/ASA-202007-4
AVG-1180 https://security.archlinux.org/AVG-1180
cpe:2.3:a:ffmpeg:ffmpeg:2.8:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ffmpeg:ffmpeg:2.8:*:*:*:*:*:*:*
cpe:2.3:a:ffmpeg:ffmpeg:4.2.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ffmpeg:ffmpeg:4.2.3:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CVE-2020-13904 https://nvd.nist.gov/vuln/detail/CVE-2020-13904
USN-4431-1 https://usn.ubuntu.com/4431-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L 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:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-13904
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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-13904
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 0.63429
EPSS Score 0.00467
Published At Aug. 9, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:31:23.093817+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.16/community.json 37.0.0