test_avb_key

On Almost Signing Android Builds Introduction An error sometimes encountered by NCC Group consultants is signing Android builds with known private keys. This leaves the device manufacturers and in turn their users vulnerable, even on devices where secure boot is enabled. This blog post has two...

CVE-2026-47223

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...

CVE-2026-47222

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. An unsigned integer underflow in a...

EUVD-2026-36508

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...

CVE-2026-47223

NanaZip (derivative of 7‑Zip) is affected from 3.0.1000.0 up to before 6.0.1698.0. The vulnerability is a heap out‑of‑bounds read in the AVB vbmeta image parser (AvbHandler) caused by a 32‑bit unsigned overflow in the bounds check (pos + ht.salt_len > descSize) that lets an attacker‑controlled...

CVE-2026-47222 NanaZip: Heap out-of-bounds read in NanaZip AVB property descriptor parser via unsigned integer underflow

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. An unsigned integer underflow in a...

PT-2026-48944

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...

CVE-2026-47222: Out-of-bounds Read

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. An unsigned integer underflow in a...

CVE-2026-47223: Out-of-bounds Read

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...

PT-2026-48929

Name of the Vulnerable Software and Affected Versions NanaZip versions 3.0.1000.0 through 6.0.1697.0 Description A heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser via the upstream 7-Zip AvbHandler. An unsigned integer underflow in a bounds check allows an...

CVE-2025-48613

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2025-48613

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2025-48613

The CVE-2025-48613 entry describes a vulnerability in VBMeta where an attacker can modify and resign VBMeta using a test key, assuming the original image was signed with the same key. This could enable local privilege escalation with no additional privileges or user interaction. Connected sources...

CVE-2025-48613

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2025-48613

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2025-48613

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

EUVD-2025-208210

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2025-48613: Improper Privilege Management

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

PT-2026-22668

Name of the Vulnerable Software and Affected Versions VBMeta affected versions not specified Description A flaw exists in VBMeta that may allow modification and resigning of VBMeta images using a test key, provided the original image was signed with the same key. Successful exploitation could lea...

ASB-A-416491056

In VBMeta, there is a possible way to modify and resign VBMeta using a test key, assuming the original image was previously signed with the same key. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...