6.7
MEDIUM
CVE-2023-20821
Oracle Network Virtualization - NVRAM Out-of-Bounds Write Privilege Escalation
Description

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.

INFO

Published Date :

Sept. 4, 2023, 3:15 a.m.

Last Modified :

Oct. 11, 2024, 9:35 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2023-20821 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mediatek mt2735
2 Mediatek mt6833
3 Mediatek mt6835
4 Mediatek mt6853
5 Mediatek mt6855
6 Mediatek mt6873
7 Mediatek mt6875
8 Mediatek mt6877
9 Mediatek mt6879
10 Mediatek mt6880
11 Mediatek mt6883
12 Mediatek mt6885
13 Mediatek mt6886
14 Mediatek mt6889
15 Mediatek mt6890
16 Mediatek mt6891
17 Mediatek mt6893
18 Mediatek mt6895
19 Mediatek mt6980
20 Mediatek mt6985
21 Mediatek mt6990
22 Mediatek mt8675
23 Mediatek mt8791
24 Mediatek mt8791t
25 Mediatek mt8797
26 Mediatek mt2713
27 Mediatek mt6983
28 Mediatek mt8321
29 Mediatek mt8673
30 Mediatek mt8765
31 Mediatek mt8766
32 Mediatek mt8768
33 Mediatek mt8781
34 Mediatek mt8786
35 Mediatek mt8788
36 Mediatek mt8789
37 Mediatek mt8168
38 Mediatek mt8188
39 Mediatek mt8195
40 Mediatek mt8395
41 Mediatek mt8385
42 Mediatek mt8666
43 Mediatek mt8167
44 Mediatek mt8167s
45 Mediatek mt8173
46 Mediatek mt8175
47 Mediatek mt8185
48 Mediatek mt8362a
49 Mediatek mt8365
1 Google android
1 Openwrt openwrt
1 Linuxfoundation yocto
1 Rdkcentral rdk-b
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-20821.

URL Resource
https://corp.mediatek.com/product-security-bulletin/September-2023 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-20821 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-20821 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 11, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Sep. 07, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://corp.mediatek.com/product-security-bulletin/September-2023 No Types Assigned https://corp.mediatek.com/product-security-bulletin/September-2023 Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:a:linuxfoundation:yocto:2.6:*:*:*:*:*:*:* *cpe:2.3:a:rdkcentral:rdk-b:2022q3:*:*:*:*:*:*:* *cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:* *cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:* *cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:* *cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:* *cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:* OR cpe:2.3:h:mediatek:mt2713:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6835:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6875:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6879:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6886:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6891:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6895:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6980:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6983:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt6990:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8167:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8167s:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8168:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8173:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8175:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8185:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8188:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8195:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8321:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8362a:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8365:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8385:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8395:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8666:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8673:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8675:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8765:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8766:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8768:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8781:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8786:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8788:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8789:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8791:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:* cpe:2.3:h:mediatek:mt8797:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-20821 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-20821 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05714

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability