CVE-2025-12801Network attack vector

Authenticated file disclosure via privileged subdirectory lookup

Published Mar 4, 2026 · Updated Mar 4, 2026

Incorrect permissions in Red Hat nfs-utils rpc.mountd allows remote authenticated users to read restricted NFSv3 export subdirectories. The daemon resolves the entire requested mount path with its privileged credential instead of applying the RPC caller credential to subdirectory lookups. Exposure requires an NFSv3 server export and valid client access; the flaw bypasses root_squash, all_squash, and filesystem permissions to disclose files beneath the export.

CVSS severity6.5
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in Red Hat nfs-utils rpc.mountd allows remote authenticated users to read restricted NFSv3 export subdirectories. The daemon resolves the entire requested mount path with its privileged credential instead of applying the RPC caller credential to subdirectory lookups. Exposure requires an NFSv3 server export and valid client access; the flaw bypasses root_squash, all_squash, and filesystem permissions to disclose files beneath the export.

The record

CVE
CVE-2025-12801
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-279, T1039
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 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 vectornetwork
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 OpenShift Container PlatformAffected 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

6.5Red HatCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A: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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-279Incorrect Execution-Assigned Permissions
T1039Data from Network Shared Drive

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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