CVE-2025-21551

Privileged data modification and denial of service

Published Jan 21, 2025 · Updated Mar 13, 2025

An unspecified file-system flaw in Oracle Solaris 11 allows local users with administrative privileges to alter critical data and crash or hang the system. The affected file-system component is identified, but Oracle has not published the flawed operation or how crafted input reaches it. Exploitation requires a high-privileged logon and can create, delete, or modify accessible data or repeatedly interrupt service.

CVSS severity6.0
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An unspecified file-system flaw in Oracle Solaris 11 allows local users with administrative privileges to alter critical data and crash or hang the system. The affected file-system component is identified, but Oracle has not published the flawed operation or how crafted input reaches it. Exploitation requires a high-privileged logon and can create, delete, or modify accessible data or repeatedly interrupt service.

The record

CVE
CVE-2025-21551
Published
Jan 21, 2025
Updated
Mar 13, 2025
Vendor
Oracle
Product
Oracle Solaris
Classifications
T1485, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2025Record 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=11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Oracle · Oracle Solarisversion=11

Published CVSS scores

6.0OracleCVSS:3.1/AV:L/AC:L/PR:H/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.

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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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1485Data Destruction
T1499Endpoint Denial of Service

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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