CVE-2020-11765

MEDIUMEPSS 75th pctl

5.5

CVSS v3

Description

An issue was discovered in OpenEXR before 2.4.1. There is an off-by-one error in use of the ImfXdr.h read function by DwaCompressor::Classifier::Classifier, leading to an out-of-bounds read.

CWE-125Out-of-bounds Read CWE-193

How to fix

Remediation Available

openexrDebian

Fixed in:2.5.3-2CVE-2020-11765

libopenexr22Ubuntu

Fixed in:2.2.0-10ubuntu2.2USN-4339-1

Fixed in:2.2.0-11.1ubuntu1.2USN-4339-1

libopenexr24Ubuntu

Fixed in:2.3.0-6ubuntu0.1USN-4339-1

openexrUbuntu

Fixed in:2.2.0-10ubuntu2.2USN-4339-1

Fixed in:2.2.0-11.1ubuntu1.2USN-4339-1

Fixed in:2.3.0-6ubuntu0.1USN-4339-1

iCloud (Legacy)Windows application

Affected:7.20Fixed in:7.20Apple Inc.

Affected:10.0 11.3Fixed in:11.3Apple Inc.

iTunesWindows application

Affected:12.10.8Fixed in:12.10.8Apple Inc.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.70%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Exploit1

bugs.chromium.org

Third-Party Advisory14

Other references1

lists.fedoraproject.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2023-21769	High	7.5	89%	-	Fix

Common questions

How do I fix CVE-2020-11765?

Published advisories record a fix for 6 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2020-11765 being actively exploited?

Not that we know of. CVE-2020-11765 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 75% of all scored CVEs.

How severe is CVE-2020-11765?

CVE-2020-11765 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2020-11765 affect?

Published advisories record a fix for openexr (Debian), libopenexr22 (Ubuntu), libopenexr24 (Ubuntu), openexr (Ubuntu), and 2 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.