CVE & CISA-KEV Catalog

CVE-2020-6851

HIGHEPSS 91th pctl

7.5

CVSS v3

Description

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.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

openjpeg2Debian

Fixed in:2.4.0-1CVE-2020-6851

Fixed in:2.4.0-1CVE-2020-6851

Fixed in:2.4.0-1CVE-2020-6851

Fixed in:2.4.0-1CVE-2020-6851

ghostscriptUbuntu

Fixed in:9.26~dfsg+0-0ubuntu0.16.04.14USN-4686-1

Fixed in:9.26~dfsg+0-0ubuntu0.18.04.14USN-4686-1

libgs9Ubuntu

Fixed in:9.26~dfsg+0-0ubuntu0.16.04.14USN-4686-1

Fixed in:9.26~dfsg+0-0ubuntu0.18.04.14USN-4686-1

libopenjp2-7Ubuntu

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

libopenjp2-toolsUbuntu

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

libopenjp3d-toolsUbuntu

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

libopenjp3d7Ubuntu

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

libopenjpip-dec-serverUbuntu

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

libopenjpip-serverUbuntu

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

libopenjpip-viewerUbuntu

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

libopenjpip7Ubuntu

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

openjpeg2Ubuntu

Fixed in:2.1.2-1.1+deb9u6ubuntu0.1~esm3USN-5952-1

Fixed in:2.1.2-1.1+deb9u5build0.16.04.1USN-4497-1

Fixed in:2.3.0-2+deb10u2build0.18.04.1USN-5952-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

4.93%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Patch1

oracle.com

Exploit1

github.com

Third-Party Advisory6

Other references2

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.