CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability was found in MediaTek 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 and MT8797 (Chip Software) and classified as critical. Affected by this issue is an unknown function of the component nvram. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:
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.
The weakness was presented 09/04/2023 as ALPS07937113. The advisory is available at corp.mediatek.com. This vulnerability is handled as CVE-2023-20821 since 10/28/2022. The technical details are unknown and an exploit is not available.
Applying the patch ALPS07937113 is able to eliminate this problem.
See VDB-238675, VDB-238676, VDB-238677 and VDB-238678 for similar entries.
Product
Type
Vendor
Name
- 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
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔒VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.4VulDB Meta Temp Score: 5.3
VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 6.7
NVD Vector: 🔒
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Patch: ALPS07937113
Timeline
10/28/2022 CVE reserved09/04/2023 Advisory disclosed
09/04/2023 VulDB entry created
09/30/2023 VulDB entry last update
Sources
Advisory: ALPS07937113Status: Confirmed
CVE: CVE-2023-20821 (🔒)
See also: 🔒
Entry
Created: 09/04/2023 07:08Updated: 09/30/2023 07:34
Changes: 09/04/2023 07:08 (41), 09/30/2023 07:34 (11)
Complete: 🔍
Cache ID: 18:D4F:103
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