Google Android sysmmu_unmap out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$5k-$25k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Google Android. The impacted element is the function sysmmu_unmap. Performing a manipulation results in out-of-bounds write. This vulnerability is identified as CVE-2022-20364. The attack is only possible with local access. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical has been found in Google Android (Smartphone Operating System) (the affected version is unknown). This affects the function sysmmu_unmap. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In sysmmu_unmap of TBD, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-233606615References: N/A

The weakness was released 09/14/2022 as A-233606615. It is possible to read the advisory at source.android.com. This vulnerability is uniquely identified as CVE-2022-20364 since 10/14/2021. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/12/2026). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-25624). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/14/2021 🔍
09/14/2022 +335 days 🔍
09/14/2022 +0 days 🔍
04/12/2026 +1306 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: A-233606615
Status: Confirmed

CVE: CVE-2022-20364 (🔍)
GCVE (CVE): GCVE-0-2022-20364
GCVE (VulDB): GCVE-100-208611
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 09/14/2022 20:30
Updated: 04/12/2026 20:39
Changes: 09/14/2022 20:30 (41), 10/17/2022 14:20 (11), 04/12/2026 20:39 (15)
Complete: 🔍
Cache ID: 216::103

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