CVE-2020-6851

mediumpriority · track · 32EPSS 0.053 · 93 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

5.29% (93rd) EPSS

CVSS 5 · medium

Is it mine?

80 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

OpenJPEG through 2.3.1 has a heap-based buffer overflow in opj_t1_clbl_decode_processor in openjp2/t1.c because of lack of opj_j2k_update_image_dimensions validation.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

affected products (80)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source OpenJPEG≤ 2.3.1cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
Fedora Project Fedora≤ 31fstec_bduRU
Fedora Project Fedora≤ 30fstec_bduRU
Novell Inc. SUSE Business Critical Linux≤ 12 SP2fstec_bduRU
Novell Inc. SUSE Linux Enterprise High Performance Computing≤ 12fstec_bduRU
Novell Inc. SUSE Linux Enterprise Module for Basesystem≤ 15 SP1fstec_bduRU
Novell Inc. SUSE Linux Enterprise Module for Basesystem≤ 15 GAfstec_bduRU
Novell Inc. SUSE Linux Enterprise SDK≤ 12 SP1fstec_bduRU
Novell Inc. SUSE Linux Enterprise SDK≤ 12 GAfstec_bduRU
Novell Inc. SUSE Linux Enterprise SDK≤ 12 SP2fstec_bduRU
Novell Inc. SUSE Linux Enterprise SDK≤ 12 SP5fstec_bduRU
Novell Inc. SUSE Linux Enterprise SDK≤ 12 SP4fstec_bduRU
Novell Inc. SUSE Linux Enterprise SDK≤ 12 SP3fstec_bduRU

showing 20 of 80

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0666OpenJPEG: Schwachstelle ermöglicht Denial of ServiceDeutsch2020-01-12csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenJPEG ausnutzen, um einen Denial of Service Angriff durchzuführen.
WID-SEC-W-2024-2181Oracle Fusion Middleware: Mehrere SchwachstellenDeutsch2020-07-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Oracle Fusion Middleware ausnutzen, um die Verfügbarkeit, Vertraulichkeit und Integrität zu gefährden.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2020-01-13modified 2026-06-17

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+16120 more

references (40)

External citations — patches, advisories, analysis.

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