CVE-2023-20821
In nvram, there is a possible out of bounds write due to a missing bounds check. This could lead...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2023-20821- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List
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.
- Record
CVE-2023-20821- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
EUVDEUVD-2023-25000
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.
- Record
EUVD-2023-25000- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9vcq-gvpp-5xgr
In nvram, there is a possible out of bounds write due to a missing bounds check. This could lead...
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.
- Record
GHSA-9vcq-gvpp-5xgr- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
- google android
- linuxfoundation yocto
- mediatek mt2713
- mediatek mt2735
- mediatek mt6833
- mediatek mt6835
- mediatek mt6853
- mediatek mt6855
- mediatek mt6873
- mediatek mt6875
- mediatek mt6877
- mediatek mt6879
Show 42 moreShow less
- mediatek mt6880
- mediatek mt6883
- mediatek mt6885
- mediatek mt6886
- mediatek mt6889
- mediatek mt6890
- mediatek mt6891
- mediatek mt6893
- mediatek mt6895
- mediatek mt6980
- mediatek mt6983
- mediatek mt6985
- mediatek mt6990
- mediatek mt8167
- mediatek mt8167s
- mediatek mt8168
- mediatek mt8173
- mediatek mt8175
- mediatek mt8185
- mediatek mt8188
- mediatek mt8195
- mediatek mt8321
- mediatek mt8362a
- mediatek mt8365
- mediatek mt8385
- mediatek mt8395
- mediatek mt8666
- mediatek mt8673
- mediatek mt8675
- mediatek mt8765
- mediatek mt8766
- mediatek mt8768
- mediatek mt8781
- mediatek mt8786
- mediatek mt8788
- mediatek mt8789
- mediatek mt8791
- mediatek mt8791t
- mediatek mt8797
- mediatek, inc. mt2713, mt2735, mt6833, mt6835, mt6853, mt6855, mt6873, mt6875, mt6877, mt6879, mt6880, mt6883, mt6885, mt6886, mt6889, mt6890, mt6891, mt6893, mt6895, mt6980, mt6983, mt6985, mt6990, mt8167, mt8167s, mt8168, mt8173, mt8175, mt8185, mt8188, mt8195, mt8321, mt8362a, mt8365, mt8385, mt8395, mt8666, mt8673, mt8675, mt8765, mt8766, mt8768, mt8781, mt8786, mt8788, mt8789, mt8791, mt8791t, mt8797
- openwrt
- rdkcentral rdk-b
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-20821 is a medium vulnerability (CVSS 6.7) in Google Android, published September 4, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.09%, the 0th percentile. No source names a fixed version.