CVE-2026-54920

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 29.0% of scored records. A rank, not a probability.

NVD base score

0.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-12.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-25 00:10Z2 MO AGO

Last updated

2026-08-25 15:17Z2 MO AGO

Reserved

2026-06-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

None (CVSS 0.0)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase
• CWE-824Access of Uninitialized PointerBase
• CWE-617Reachable AssertionBase

Data version

5.2

Document digest

339df87b4cb1ed7f2881e8129c0ca6f556bf618761b94a679b9b99e8e4df21ef

• github.comhttps://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-fp75-87pr-8329x_refsource_CONFIRM