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CVE Record

CVE-2021-41073: loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges...

loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is a Linux kernel local privilege escalation. A person who can already run code on an affected machine may be able to gain higher privileges. The known affected range is Linux kernel 5.10 through 5.14.6. The source bundle does not show active exploitation in the wild. Exposure is limited to systems running Linux kernel 5.10 through 5.14.6 where local users can execute code. Internet exposure alone is not enough based on the supplied sources; this requires local access or another path to code execution. Treat as high priority for Linux fleets with shared access, developer systems, or other local user exposure. It is not described as remotely exploitable in the supplied sources, but successful exploitation could convert limited access into privileged control. Mitigation focus: Update affected Linux kernels using vendor security packages.; Check Debian, Fedora, NetApp, and relevant vendor advisories.; Prioritize hosts with untrusted or shared local users..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2021-41073 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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