Is CVE-2020-15306 in the CISA KEV catalog?

No. CVE-2020-15306 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-15306?

CVE-2020-15306 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-15306?

CVE-2020-15306 has an EPSS score of 0.46% (37th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-15306?

Upgrade openexr on debian 11 to 2.5.3-2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-15306

MEDIUM

5.5

CVSS v3

NVD

Description

An issue was discovered in OpenEXR before v2.5.2. Invalid chunkCount attributes could cause a heap buffer overflow in getChunkOffsetTableSize() in IlmImf/ImfMisc.cpp.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

openexrDebian

Fixed in:2.5.3-2CVE-2020-15306

libopenexr22Ubuntu

Fixed in:2.2.0-10ubuntu2.3USN-4418-1

Fixed in:2.2.0-11.1ubuntu1.3USN-4418-1

libopenexr24Ubuntu

Fixed in:2.3.0-6ubuntu0.2USN-4418-1

openexrUbuntu

Fixed in:2.2.0-10ubuntu2.3USN-4418-1

Fixed in:2.2.0-11.1ubuntu1.3USN-4418-1

Fixed in:2.3.0-6ubuntu0.2USN-4418-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.46%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory9

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.