CVE•Published 2026-06-19•Modified 2026-06-22•1 article on news•4 live references•NVD data
CVE-2025-62821
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS percentile
—
Weaknesses (CWE)
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.
Timeline
Published 2026-06-19
Modified 2026-06-22
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2025-62821Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-62821Censys host search filtered to this CVE id.
grep.app
CVE-2025-62821Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-62821GitHub code search for direct mentions.
Google dork
"CVE-2025-62821" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2025-62821 on GitHub.