Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
n/a n/a — Microsoft HEIF Image Extensions 1.2.22.0 has an out-of-bounds read because CHEIFItemInfoEntry_GetDataSize can return success while leavin…
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U H N H 9.1 .0105 61.7 —
AFFECTED
Product Versions Fixed
n/a n/a – —
TIMELINE
Oct 23 Reserved by mitre
Jun 19 EXPLOIT PUBLISHED — CVE-2025-62821. Public exploit reference added.
Jun 19 Published (CNA: mitre)
Description
Microsoft HEIF Image Extensions 1.2.22.0 has an out-of-bounds read because CHEIFItemInfoEntry_GetDataSize can return success while leaving the reported data size as 0. This causes a caller to make a 1-byte allocation. Later, CopyPixels computes copy_size = stride * abs(roi_height) but does not check the source buffer length before a memmove call.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| October 23, 2025 | Reserved | Reserved by mitre |
| June 19, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2025-62821. Public exploit reference added. |
| June 19, 2026 | Published | Published (CNA: mitre) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| n/a | n/a | — | n/a | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-62821 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.