CVE-2023-20821

In nvram, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07937113; Issue ID: ALPS07937113.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.7 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
MediaTekCNA
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CVEADP
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CISA-ADPADP
6.7 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
VendorProductVersion
linuxfoundationyocto
2.6
googleandroid
11.0
googleandroid
12.0
googleandroid
13.0
openwrtopenwrt
19.07.0
openwrtopenwrt
21.02.0
𝑥
= Vulnerable software versions