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Vulnerability details: VCID-a8hw-hu9g-73gn
Vulnerability ID VCID-a8hw-hu9g-73gn
Aliases CVE-2020-20896
Summary An issue was discovered in function latm_write_packet in libavformat/latmenc.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts due to a Null pointer dereference.
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-476 NULL Pointer Dereference
System Score Found at
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
epss 0.00502 https://api.first.org/data/v1/epss?cve=CVE-2020-20896
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-2020-20896
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2020-20896
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-20896
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20891
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20892
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20896
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21688
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21697
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3566
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/dd01947397b98e94c3f2a79d5820aaf4594f4d3b
https://trac.ffmpeg.org/ticket/8273
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-2020-20896 https://nvd.nist.gov/vuln/detail/CVE-2020-20896
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-2020-20896
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-2020-20896
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 0.64984
EPSS Score 0.00502
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T12:12:50.347088+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 37.0.0