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NVD / CVE Program· CNA GitHub_M

CVE-2026-59183: OpenEXR: Signed Integer Overflow Leading to Out-of-Bounds Memory Access in Deep Tile Decoding

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: openexr (Alpine:v3.24) 3.4.15-r0; openexr (Debian:14) 3.4.14-0.1; openexr (openSUSE:Leap 16.0) 3.2.2-160000.10.1.

Low priority for now. Upgrade to openexr (Alpine:v3.24) 3.4.15-r0; openexr (Debian:14) 3.4.14-0.1; openexr (openSUSE:Leap 16.0) 3.2.2-160000.10.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, an int32_t multiplication in OpenEXRCore's unpack_sample_table() can overflow while decoding a crafted deep tiled EXR file, producing an invalid pointer that leads to a read from an unmapped memory address and a crash. Because the overflow occurs in the standard decoding path (exr_decoding_run), any application that decodes deep tiled EXR files is affected. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Aug 25, 2026
Updated
Oct 12, 2026
EPSS
0.1% · 6th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
5.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • AcademySoftwareFoundation openexr

    • >= 3.1.0, < 3.2.11, >= 3.3.0, < 3.3.13, >= 3.4.0, < 3.4.14affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.24openexrbefore 3.4.15-r03.4.15-r0
Debian:12openexrfrom 0—
Debian:14openexrbefore 3.4.14-0.13.4.14-0.1
openSUSE:Leap 16.0openexrbefore 3.2.2-160000.10.13.2.2-160000.10.1
openSUSE:Tumbleweedopenexrbefore 3.4.14-1.13.4.14-1.1
openSUSE:Tumbleweedpython-OpenEXRbefore 3.4.16-1.13.4.16-1.1
SUSE:Linux Enterprise Server 16.0openexrbefore 3.2.2-160000.10.13.2.2-160000.10.1

Same product

academysoftwarefoundation: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-68515OpenEXR: Heap out-of-bounds write in exrmultiview with subsampled channel union
    28Monitor
  • CVE-2026-68513OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed RGB channel name collision
    28Monitor
  • CVE-2026-59981OpenEXR: Heap OOB read in SampleCountChannel row when using nonzero dataWindow
    28Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-55371Aug 25, 2026 · OpenEXR: OpenEXRCore exr_attr_set_bytes() accepts NULL type_hint with positive hint_length
    27Monitor
  • ← EarlierCVE-2026-55373Aug 25, 2026 · OpenEXR: OpenEXRUtil SampleCountChannel endEdit() can loop forever on UINT_MAX sample counts
    24Monitor
  • Later →CVE-2026-59184Aug 25, 2026 · OpenEXR: OpenEXRUtil FlatImageChannel row nonzero dataWindow heap OOB write
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:openexr3.4.15-r0 · Alpine:v3.24Package registry (OSV)
debian:openexr3.4.14-0.1 · Debian:14Package registry (OSV)
opensuse:openexr3.4.14-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:python-OpenEXR3.4.16-1.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:openexr3.2.2-160000.10.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-599820 days apartOpenEXR: DWAA InputFile AC buffer overflow on ILP32 platforms
    28Monitor
  • CVE-2026-553730 days apartOpenEXR: OpenEXRUtil SampleCountChannel endEdit() can loop forever on UINT_MAX sample counts
    24Monitor
  • CVE-2026-549200 days apartOpenEXR: Integer overflow and uninitialized pointer cause invalid delete in OpenEXRUtil image resize
    0Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records