NONE
CVE-2026-23156
Published: February 14, 2026· Updated: Feb 18, 2026
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.3th
Official Description
In the Linux kernel, the following vulnerability has been resolved:
efivarfs: fix error propagation in efivar_entry_get()
efivar_entry_get() always returns success even if the underlying
__efivar_entry_get() fails, masking errors.
This may result in uninitialized heap memory being copied to userspace
in the efivarfs_file_read() path.
Fix it by returning the error from __efivar_entry_get().
Technical Analysis
CVE-2026-23156 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
Affected Vendors & Products
Mentioned vendors (from description):
Linux
CPE data not yet available in NVD for this CVE.
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
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NVD Detail
Official NIST entry
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All References (5)
Quick Facts
CVE IDCVE-2026-23156
SeverityNONE
CISA KEVNo
EPSS (30d)0.02%
PublishedFeb 14, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-23156 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.