CVE-2026-82474Hinoki check available

Restricted-command bypass via unmonitored execveat calls

Published Aug 29, 2026 · Updated Aug 29, 2026

Protection mechanism failure in Sudo Project sudo 1.9.17p2 and earlier allows local users to execute denied programs via execveat. In ptrace-based intercept mode, exec_ptrace.c always permits execveat instead of resolving the target descriptor and applying sudoers policy checks. A user already authorized for a limited command can invoke execveat directly or through fexecve to run unapproved programs without the expected subcommand log.

CVSS severity8.5
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Protection mechanism failure in Sudo Project sudo 1.9.17p2 and earlier allows local users to execute denied programs via execveat. In ptrace-based intercept mode, exec_ptrace.c always permits execveat instead of resolving the target descriptor and applying sudoers policy checks. A user already authorized for a limited command can invoke execveat directly or through fexecve to run unapproved programs without the expected subcommand log.

The record

CVE
CVE-2026-82474
Published
Aug 29, 2026
Updated
Aug 29, 2026
Vendor
Sudo Project
Product
sudo
Classifications
CWE-693, T1548.003
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.9.17p2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Sudo Project · sudoversion=0 <=1.9.17p2

Published CVSS scores

7.8VulnCheck CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5VulnCheck CNACVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
T1548.003Sudo and Sudo Caching

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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