Google Android FUSE backing.c fuse_backing_mmap use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$25k-$100k0.00+

Summaryinfo

A vulnerability classified as very critical was found in Google Android. Affected by this issue is the function fuse_backing_mmap of the file backing.c of the component FUSE. Executing a manipulation can lead to use after free. The identification of this vulnerability is CVE-2026-58829. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability has been found in Google Android (version unknown) and classified as very critical. This vulnerability affects the function fuse_backing_mmap of the file backing.c of the component FUSE. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In fuse_backing_mmap of backing.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

The advisory is shared for download at android.googlesource.com. This vulnerability was named CVE-2026-58829 since 07/02/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $25k-$100k (estimation calculated on 11/02/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/02/2026 CVE reserved
11/02/2026 +123 days Advisory disclosed
11/02/2026 +0 days VulDB entry created
11/02/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: google.com

Advisory: android.googlesource.com
Status: Confirmed

CNA: google_android
CVE: CVE-2026-58829 (🔒)

GCVE (CVE): GCVE-0-2026-58829
GCVE (VulDB): GCVE-100-430024
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 11/02/2026 21:19
Changes: 11/02/2026 21:19 (55)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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