CVE-2021-3753
MEDIUM
4.7
CVSS Score
Published: February 16, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:05 AM UTC
19 products affected across 3 vendorsLinux KernelEnterprise LinuxActive IQ Unified Manager
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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.4%
Description
A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 5.15
Affected range stops below 5.15, so it looks safe — our inference, not a vendor statement
All versions
All versions
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
Issue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1999589PatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20221028-0003/ExploitMailing ListPatchThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2021/09/01/4CVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125
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