CVE-2021-2464

Local privilege escalation via non-static command paths

Published Sep 24, 2021 · Updated Sep 25, 2024

Local privilege escalation in OSWatcher on Oracle Linux 7 and 8 allows local users with low privileges to take over the system. OSWatcher scripts use non-static command-path resolution, allowing an attacker-influenced executable to run instead of an intended utility. A valid low-privilege logon is required, and successful exploitation grants control of the affected host.

CVSS severity7.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in OSWatcher on Oracle Linux 7 and 8 allows local users with low privileges to take over the system. OSWatcher scripts use non-static command-path resolution, allowing an attacker-influenced executable to run instead of an intended utility. A valid low-privilege logon is required, and successful exploitation grants control of the affected host.

The record

CVE
CVE-2021-2464
Published
Sep 24, 2021
Updated
Sep 25, 2024
Vendor
Oracle
Product
Oracle Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 24, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record 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=7
  2. Affected versionversion=8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Oracle · Oracle Linuxversion=7; version=8

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
7.8OracleCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

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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