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CVE-2022-2873 is an incorrect buffer-size calculation in the Linux kernel Intel iSMT SMBus host-controller driver. In the driver's ismt_access() handling of the I2C_SMBUS_BLOCK_DATA transaction type, malicious userspace-supplied block data passed through the I2C_SMBUS ioctl can cause an out-of-bounds memory access.
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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.
No public exploits tracked yet. Mallory keeps watching.
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.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds vulnerability in the Linux kernel i2c-ismt driver.
An out-of-bounds vulnerability in the Linux kernel i2c-ismt driver, addressed by the Red Hat kernel-rt update.
An out-of-bounds vulnerability in the Linux kernel i2c-ismt driver.
An out-of-bounds vulnerability in the Linux kernel i2c-ismt driver.
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.