ImageIO crafted file bounds-check issue causing app termination
CVE-2026-28977 is an Apple ImageIO vulnerability caused by insufficient bounds checking while processing a maliciously crafted file. Apple states the issue was addressed with improved bounds checks. Successful triggering can cause unexpected application termination during file parsing/processing. The available content does not identify the exact vulnerable function or file format parser within ImageIO.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
21 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A file parsing vulnerability in ImageIO that may lead to unexpected app termination.
A macOS Tahoe vulnerability where processing a maliciously crafted file may lead to unexpected app termination.
A file-processing vulnerability that could cause unexpected app termination, addressed with improved bounds checks.
A macOS Sonoma vulnerability where a maliciously crafted file may cause unexpected app termination.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.