Parallax kernel use-after-free in Apple iOS and iPadOS
CVE-2023-41974 is a kernel use-after-free vulnerability in Apple iOS and iPadOS. Apple describes it as a use-after-free issue in the kernel that was addressed with improved memory management. Successful exploitation allows a malicious application on the device to execute arbitrary code with kernel privileges. Public reporting also identifies this flaw as the kernel privilege-escalation component of the Coruna exploit kit, where it is referred to as “Parallax.” The issue was fixed in iOS 17 and iPadOS 17, and later backported to older supported releases including iOS 15.8.7 and iPadOS 15.8.7.
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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
41 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An iOS kernel privilege escalation vulnerability used in Coruna Stage 3 to obtain root and deploy the PLASMAGRID implant.
A privilege escalation vulnerability included in the Coruna iOS exploit kit.
A security flaw for which Apple expanded patches; the flaw was weaponized as part of the Coruna exploit kit.
A kernel use-after-free vulnerability in iOS used as the kernel privilege escalation component of the Coruna exploit chain.
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.