Linux Kernel up to 7.2.0 nfc microread_target_discovered buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00-

Summaryinfo

A vulnerability categorized as very critical has been discovered in Linux Kernel up to 7.2.0. Affected by this issue is the function microread_target_discovered of the component nfc. Executing a manipulation can lead to buffer overflow. This vulnerability appears as CVE-2026-80801. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 7.2.0 and classified as very critical. This vulnerability affects the function microread_target_discovered of the component nfc. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: nfc: microread: validate target discovery payload lengths microread_target_discovered() parses target discovery payloads from skb->data according to the HCI gate. The fixed field offsets and UID copies were checked only against the destination nfc_target buffers, not against the actual skb length. Validate that each gate-specific payload contains the fixed fields and UID bytes before reading or copying them.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2026-80801 since 08/26/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/04/2026).

Upgrading to version 5.10.267, 5.15.218, 6.1.185, 6.6.154, 6.12.106, 6.18.47, 7.1.11, 7.2.1 or 7.3-rc1 eliminates this vulnerability. Applying the patch c6de4241f2efbbab286efbb84a9c7190298b3052/92a6f0201bb68391b5eba1b3f330af007d7323b6/cb298672282421159e53ab311fe49d204c8a52da/18f02354ed229b8e4561b580812d026e7eb29c85/e6397fe7b8b5ef18e051f49612d40ff476c5f7d9/d0902a7c454326c6384c614226ab8987f3fd425d/dabfa26a208e56f4d8dbf26fddc48f188bdb0649/953963b9ac5eecbb316617d337bfaa3d731e3c5e/25519469972ef57c3edb1805dabd6c5612b90211 is able to eliminate this problem.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
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: Buffer overflow
CWE: CWE-120 / 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: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.267/5.15.218/6.1.185/6.6.154/6.12.106/6.18.47/7.1.11/7.2.1/7.3-rc1
Patch: c6de4241f2efbbab286efbb84a9c7190298b3052/92a6f0201bb68391b5eba1b3f330af007d7323b6/cb298672282421159e53ab311fe49d204c8a52da/18f02354ed229b8e4561b580812d026e7eb29c85/e6397fe7b8b5ef18e051f49612d40ff476c5f7d9/d0902a7c454326c6384c614226ab8987f3fd425d/dabfa26a208e56f4d8dbf26fddc48f188bdb0649/953963b9ac5eecbb316617d337bfaa3d731e3c5e/25519469972ef57c3edb1805dabd6c5612b90211

Timelineinfo

08/26/2026 CVE reserved
09/04/2026 +9 days Advisory disclosed
09/04/2026 +0 days VulDB entry created
09/04/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80801 (🔒)
GCVE (CVE): GCVE-0-2026-80801
GCVE (VulDB): GCVE-100-398938

Entryinfo

Created: 09/04/2026 18:25
Changes: 09/04/2026 18:25 (59)
Complete: 🔍
Cache ID: 216::103

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