Information leak in Google Chrome memory_instrumentation
CVE-2021-37976 is an information disclosure vulnerability in Google Chrome, described by Google as an inappropriate implementation issue in Memory / memory_instrumentation. In Chrome versions prior to 94.0.4606.71, a remote attacker could trigger the flaw via a crafted HTML page and obtain potentially sensitive information from process memory. The available context identifies this as a Chrome bug used in the wild as part of a 2021 Android-targeting exploit chain alongside CVE-2021-37973, CVE-2021-38000, CVE-2021-38003, and CVE-2021-1048. Specific vulnerable functions or code paths beyond the memory_instrumentation component are not provided in the supplied content.
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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
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An information leak vulnerability in memory_instrumentation in Google Chrome, exploited by Predator spyware.
One of five zero-day vulnerabilities reportedly exploited in an exploit chain to deliver the ALIEN implant; affects Google Chrome.
A Chrome zero-day vulnerability used in campaigns targeting Android users.
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.