Berkeley BOOM NBDTLB privileges management

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 classified as very critical was found in Berkeley BOOM. This affects an unknown part of the component NBDTLB. Executing a manipulation can lead to privileges management. This vulnerability appears as CVE-2026-67846. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability classified as very critical was found in Berkeley BOOM (version unknown). This vulnerability affects an unknown function of the component NBDTLB. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Berkeley Out-of-Order Machine (BOOM) commit 5223e44cfeb26f41380057a2eb4d651197475f69 contains a potential incorrect privilege assignment issue in the v3 and v4 NBDTLB implementations. The raw mstatus.SUM value participates in the read and write permission logic without an explicit local satp.MODE validity check at the use site

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-67846 since 07/30/2026. The exploitation appears to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/18/2026). The MITRE ATT&CK project declares the attack technique as T1068.

Applying the patch 5223e44cfeb26f41380057a2eb4d651197475f69 is able to eliminate this problem.

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

Productinfo

Vendor

Name

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

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
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: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 5223e44cfeb26f41380057a2eb4d651197475f69

Timelineinfo

07/30/2026 CVE reserved
08/18/2026 +19 days Advisory disclosed
08/18/2026 +0 days VulDB entry created
08/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-67846 (🔒)
GCVE (CVE): GCVE-0-2026-67846
GCVE (VulDB): GCVE-100-391888

Entryinfo

Created: 08/18/2026 20:15
Changes: 08/18/2026 20:15 (54)
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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