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CVE-2025-48074

INDEX BUILT · 2026-09-20

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OpenEXR's Unbounded File Header Values can Lead to Out-Of-Memory Errors

CVE-2025-480744 of 4 sources documented this
16

rank 16 = 0 + 14 + 0 + 2 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00259  ·  without this subject the record ranks 16

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 5.5, from NVD  ·  without this subject the record ranks 2

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 16

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 14

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 16

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$3,110over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$3,110 = $4.99M incident cost x 0.24048551839932833 exposure x 0.00259 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00259EPSSNOT IN KEVas of 2026-09-20
Severity4.6 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-08-02, 394 days at 0.00, as of 2026-08-31. arc-rules@v1

Foresight · where to check next

This record is one instance of CWE-770, allocation of resources without limits or throttling. The index holds 2390 prior instances of this class, 2 KEV-listed. taxonomy@v1

Full pattern panel

Color is a claim, not decoration:the hostile worldthe defenseno signal

Sources disagree here.

Severity score
GitHub_M4.6 MEDIUMreceipt
NVD5.5 MEDIUMreceipt
Scoring standard
GitHub_MCVSS v4.0receipt
NVDCVSS v3.1receipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running AcademySoftwareFoundation openexr? Check your version

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachneeds local access · no privileges required · active user interaction · low attack complexity · no attack requirementsreceipt
ImpactPartial availability lossreceipt
Scored fromCVSS v4.0 · the CNA's vectorreceipt
Weakness classCWE-770 Allocation of Resources Without Limits or Throttlingreceipt
Published consequencesCWE-770: Availability: DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other)[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 31 Aug 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA4.6 MEDIUMreceipt
CVSS, NVD5.5 MEDIUMreceipt
Exploit probability0.00259 · top 82% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byGitHub_Mreceipt
Recorded changes19 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productAcademySoftwareFoundation openexrreceipt
Published rangesopenexr 3.3.2receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In version 3.3.2, applications trust unvalidated dataWindow size values from file headers, which can lead to excessive memory allocation and performance degradation when processing malicious files. This is fixed in version 3.3.3. receipt

NVD's analysis a second authority

severity
5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
weakness
CWE-770
affected versions
openexr 3.3.2
also scored by
[email protected] 4.6 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

The CNA scored it 4.6 and NVD 5.5. Both are shown because both were published; we do not pick one.

check it yourself github.com github.com receipt

Movement the material steps

2 Aug 20250.00014
15 Jun 20260.00242 · scoring model v2026.06.15
31 Aug 20260.00259
Show all 19 observations
2 Aug 20250.00014
7 Aug 20250.00019
14 Aug 20250.00021
2 Sep 20250.00023
12 Sep 20250.00031
8 Oct 20250.00036
1 Dec 20250.00051
27 Dec 20250.00029
29 Dec 20250.00028
9 Jan 20260.00033
25 Feb 20260.00035
6 Apr 20260.00036
17 Apr 20260.00044
27 Apr 20260.00049
28 May 20260.00133
15 Jun 20260.00242
2 Jul 20260.00259
7 Aug 20260.00257
31 Aug 20260.00259

19 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00259Published2025-08-01Index as of2026-08-31

The record had been public for 1 year when this index was last written.

Published 2025-08-01 receipt · Index as of 2026-08-31 derived

The pattern, elsewhere

This record is one instance of CWE-770, allocation of resources without limits or throttling. The index holds 2390 prior instances of this class, 2 KEV-listed. [email protected]

CVE-2020-3566 · Cisco IOS XR Softwareonly 1 attribute comparableKEV listed · 2020receipt
CVE-2020-3569 · Cisco IOS XR Softwareonly 1 attribute comparableKEV listed · 2020receipt

2390 records in this class held. The six above are ranked by exploit maturity, then recency.

Siblings and hubs

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These are index-wide views, not findings about CVE-2025-48074.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

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