CVE-2026-71694Network attack vector

Code execution via faulty MRET state restoration

Published Aug 19, 2026 · Updated Aug 19, 2026

Code execution in the BOOM BoomTile RTL benchmark 1.2 allows remote attackers to run arbitrary code through crafted MRET handling. The public record identifies CSR trap-return restoration, MRET handling, the mstatus.MPRV update path, and CSRFile as the faulty locus but does not disclose the precise erroneous operation. Exploitation requires user interaction and reaches the simulated processor logic in the ProcessorFuzz benchmark.

CVSS severity8.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in the BOOM BoomTile RTL benchmark 1.2 allows remote attackers to run arbitrary code through crafted MRET handling. The public record identifies CSR trap-return restoration, MRET handling, the mstatus.MPRV update path, and CSRFile as the faulty locus but does not disclose the precise erroneous operation. Exploitation requires user interaction and reaches the simulated processor logic in the ProcessorFuzz benchmark.

The record

CVE
CVE-2026-71694
Published
Aug 19, 2026
Updated
Aug 19, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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