CVE-2026-7867Public exploit

Local privilege escalation via as-user identity spoofing

Published Aug 6, 2026 · Updated Aug 6, 2026

Incorrect authorization in Red Hat Enterprise Linux 10 udisks2 allows local users to gain root through a crafted D-Bus mount request. The Filesystem.Mount handle_mount path accepts a caller-controlled as-user value, resolves it to a UID and GID, and skips PolicyKit authorization on qualifying fstab paths. Exploitation requires local session D-Bus access and a udisks2-visible fstab entry using x-udisks-auth, user, or users, after which a root-context mount can expose executable setuid content.

CVSS severity7.8
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Red Hat Enterprise Linux 10 udisks2 allows local users to gain root through a crafted D-Bus mount request. The Filesystem.Mount handle_mount path accepts a caller-controlled as-user value, resolves it to a UID and GID, and skips PolicyKit authorization on qualifying fstab paths. Exploitation requires local session D-Bus access and a udisks2-visible fstab entry using x-udisks-auth, user, or users, after which a root-context mount can expose executable setuid content.

The record

CVE
CVE-2026-7867
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-862, CWE-269, CWE-863, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.

Published CVSS scores

7.8storaged-projectCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/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.

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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-269Improper Privilege Management
CWE-863Incorrect Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

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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