CVE-2021-25407: A possible out of bounds write vulnerability in NPU driver prior to SMR JUN-2021 Release 1 allows arbitrary memory write

High severity · published Jun 11, 2021

CVE-2021-25407

A possible out of bounds write vulnerability in NPU driver prior to SMR JUN-2021 Release 1 allows arbitrary memory write

7.8

CVSS

0.2%

EPSS

On KEV

Description

A possible out of bounds write vulnerability in NPU driver prior to SMR JUN-2021 Release 1 allows arbitrary memory write.

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

Android · Google

9.0; 10.0; 11.0 · source: NVD

Samsung Mobile Devices · Samsung Mobile

P(9.0), Q(10.0), R(11.0) devices with Exynos9820, 9830, 980, 2100 chipsets before SMR JUN-2021 Release 1 · source: vendor

Affected product

Android

Google

All Android CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-25407

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-25407

Third Party Advisory

http://packetstormsecurity.com/files/163198/Samsung-NPU-npu_session_format-Out-Of-Bounds-Write.html

Vendor Advisory

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=6