High severity · published Jan 9, 2026
CVE-2026-20971
Use After Free in PROCA driver prior to SMR Jan-2026 Release 1 allows local attackers to potentially execute arbitrary code
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Use After Free in PROCA driver prior to SMR Jan-2026 Release 1 allows local attackers to potentially execute arbitrary code.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SM
Samsung Mobile Devices · Samsung Mobile
All versions, or not specified · source: vendor
AN
Android · Samsung
13.0; 13.0; 13.0; 13.0; 13.0; 13.0; +34 more · source: NVD
In the news
VulnerabilityHigh
Samsung KNOX Kernel UAF Exposes Millions of Galaxy Devices
Samsung’s KNOX flaw (CVE-2026-20971) is a kernel UAF in PROCA/FIVE that can enable corruption via a race; Samsung patched it in Jan 2026. Experts found a nasty kernel flaw in Samsung’s KNOX stack, and the uncomfortable part is where it lived: inside the software designed to raise the bar for attackers. CVE-2026-20971 is a use-after-free […]
Jun 23, 2026·Security Affairs
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20971
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20971
Vendor Advisory
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=01
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