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CVE-2025-21905 is an out-of-bounds read in the Linux kernel Intel iwlwifi Wi-Fi driver. While processing firmware-file TLVs, iwlwifi could print firmware-supplied string data without ensuring it was NUL-terminated. An unterminated value could cause the string-printing operation to read past the relevant TLV boundary and, when the TLV is the final element, potentially past the firmware-file buffer. The upstream fix constrains the printed string to the available buffer length.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
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.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel iwlwifi issue involving insufficient limiting of a string printed from a firmware file.
A Linux kernel iwlwifi issue involving insufficient limitation of a string printed from a firmware file.
A Linux kernel iwlwifi driver flaw involving insufficient limitation of a string printed from firmware files.
A Linux kernel iwlwifi issue involving insufficient limiting of a string printed from a firmware file.
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.