CVE-2021-20303

MEDIUM
6.1
CVSS Score
Published: March 4, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 03:33 AM UTC
2 products affected across 2 vendorsDebian LinuxOpenexr

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.8%

Description

A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.5.4
Vendor states this is fixed in 2.5.4 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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