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Vulnerability details: VCID-jzjf-jjcg-euak
Vulnerability ID VCID-jzjf-jjcg-euak
Aliases CVE-2020-27844
Summary A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (5)
CWE-20 Improper Input Validation
CWE-122 Heap-based Buffer Overflow
CWE-787 Out-of-bounds Write
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 7.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27844.json
epss 0.01162 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01162 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01162 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01162 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01162 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01162 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01162 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.012 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01463 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01587 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
epss 0.01587 https://api.first.org/data/v1/epss?cve=CVE-2020-27844
cvssv3.1 8.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 8.3 https://nvd.nist.gov/vuln/detail/CVE-2020-27844
cvssv3.1 7.8 https://nvd.nist.gov/vuln/detail/CVE-2020-27844
archlinux Medium https://security.archlinux.org/AVG-1361
archlinux High https://security.archlinux.org/AVG-1631
archlinux High https://security.archlinux.org/AVG-1633
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27844.json
https://api.first.org/data/v1/epss?cve=CVE-2020-27844
https://bugzilla.redhat.com/show_bug.cgi?id=1907521
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2021/02/msg00011.html
https://security.gentoo.org/glsa/202101-29
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com//security-alerts/cpujul2021.html
ASA-202103-19 https://security.archlinux.org/ASA-202103-19
AVG-1361 https://security.archlinux.org/AVG-1361
AVG-1631 https://security.archlinux.org/AVG-1631
AVG-1633 https://security.archlinux.org/AVG-1633
cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:outside_in_technology:8.5.5:*:*:*:*:*:*:*
cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*
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-2020-27844 https://nvd.nist.gov/vuln/detail/CVE-2020-27844
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27844.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:H/PR:N/UI:N/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
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27844
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:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27844
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 0.77804
EPSS Score 0.01162
Published At Sept. 9, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:38:27.075384+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.19/community.json 37.0.0