CVE-2026-73584Hinoki check available

Privileged file corruption via temporary-file symlink race

Published Aug 13, 2026 · Updated Aug 13, 2026

Insecure temporary-file handling in sblim-sfcb on Red Hat Enterprise Linux 7 through 10 allows local users to corrupt privileged files. During privileged instance migration, the process follows a repeatedly recreated symbolic link in /tmp and writes privileged output to the link target. Exploitation requires low-privileged local access and winning a high-complexity race; the result is arbitrary privileged-file corruption or denial of service whose failure mode Red Hat has not specified.

CVSS severity6.3
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Insecure temporary-file handling in sblim-sfcb on Red Hat Enterprise Linux 7 through 10 allows local users to corrupt privileged files. During privileged instance migration, the process follows a repeatedly recreated symbolic link in /tmp and writes privileged output to the link target. Exploitation requires low-privileged local access and winning a high-complexity race; the result is arbitrary privileged-file corruption or denial of service whose failure mode Red Hat has not specified.

The record

CVE
CVE-2026-73584
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-377
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 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.
389 Directory Server · Red Hat Enterprise Linux 7Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.

Published CVSS scores

6.3Red Hat, Inc.CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-377Insecure Temporary File

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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