Loading vulnerability…
CVE-2026-28867 is an information disclosure vulnerability in the Apple Kernel affecting multiple Apple operating systems, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. The issue allows a local app to leak sensitive kernel state. Apple indicated the flaw was addressed through improved authentication, which suggests insufficient enforcement of authorization or access controls around exposure of privileged kernel state to untrusted application context. The vulnerability is distinct from related kernel memory disclosure issues and specifically concerns disclosure of kernel state rather than direct kernel memory corruption or code execution.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a minimal two-file proof-of-concept consisting of an MIT LICENSE and a single C source file, poc.c. The code is a standalone macOS kernel information disclosure PoC, not tied to a larger exploit framework. Its purpose is to query the macOS sysctl interface 'net.inet.tcp.info' using a user-supplied TCP connection tuple and retrieve a variable-length tcp_info structure from the kernel. The exploit flow is straightforward: main() parses four command-line arguments (local IP, local port, remote IP, remote port), builds an info_tuple for either IPv4 or IPv6, performs an initial sysctlbyname() call to determine the required output buffer size, allocates that buffer, then performs a second sysctlbyname() call to fetch the TCP info. If successful, it prints selected fields from the returned structure, specifically tcpi_state, tcpi_snd_nxt, and tcpi_rcv_nxt. This demonstrates an information leak rather than code execution, privilege escalation, or persistence. There are no hardcoded remote C2 endpoints, download URLs, or shell payloads. The only fingerprintable target interface is the local macOS sysctl name 'net.inet.tcp.info'. Network-related values are entirely operator-supplied, with only loopback examples embedded in the usage text (127.0.0.1, ::1, ports 12345 and 80). Overall, this is a concise local PoC for leaking TCP connection state from the macOS kernel for a specified existing connection.
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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A kernel information disclosure flaw leaking sensitive kernel state or memory.
An authentication issue that may allow an app to leak sensitive kernel state.
An authentication-related issue in macOS Sequoia that could allow an app to leak sensitive kernel state.
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.