What is CVE-2026-88384?

CVE-2026-88384 is a medium-severity vulnerability in N/a, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2026-09-24.

How severe is CVE-2026-88384?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in N/a

CVE-2026-88384

OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.

Published 2026-09-24 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

Frequently asked questions

What is CVE-2026-88384?: CVE-2026-88384 is a medium-severity vulnerability in N/a, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2026-09-24.
How severe is CVE-2026-88384?: Medium severity. CVSS v3 base score is 5.5 out of 10.