Arm Bifrost GPU Kernel Driver 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$0-$5k0.00+

Summaryinfo

A vulnerability marked as very critical has been reported in Arm Bifrost GPU Kernel Driver, Valhall GPU Kernel Driver and 5th Gen GPU Architecture Kernel Driver. Affected by this issue is some unknown functionality. The manipulation leads to use after free. This vulnerability is documented as CVE-2026-7477. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability was found in Arm Bifrost GPU Kernel Driver, Valhall GPU Kernel Driver and 5th Gen GPU Architecture Kernel Driver (the affected version is unknown). It has been rated as very critical. This issue affects an unknown code. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory. This issue affects Bifrost GPU Kernel Driver: from r44p0 through r49p4, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3, r55p0.

It is possible to read the advisory at support.arm.com. The identification of this vulnerability is CVE-2026-7477 since 04/30/2026. The exploitation is known to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/08/2026).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

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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💳💳💳💳💳💳
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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

04/30/2026 CVE reserved
09/08/2026 +131 days Advisory disclosed
09/08/2026 +0 days VulDB entry created
09/08/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: support.arm.com
Status: Confirmed

CVE: CVE-2026-7477 (🔒)
GCVE (CVE): GCVE-0-2026-7477
GCVE (VulDB): GCVE-100-399851

Entryinfo

Created: 09/08/2026 16:46
Changes: 09/08/2026 16:46 (51)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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