CVE-2021-38993

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the smbcd daemon to cause a denial of service. IBM X-Force ID: 212962.

IBM AIX y VIOS. (CVE-2021-38993) IBM AIX versiones 7.1, 7.2, 7.3 y VIOS versión 3.1, podrían permitir a un usuario local no privilegiado aprovechar una vulnerabilidad en el demonio smbcd para causar una denegación de servicio. IBM X-Force ID: 212962.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-16 CVE Reserved
2022-02-25 CVE Published
2023-03-08 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://www.ibm.com/support/pages/node/6559320	2022-03-04

URL	Date	SRC
https://exchange.xforce.ibmcloud.com/vulnerabilities/212962	2022-03-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ibm Search vendor "Ibm"		Vios Search vendor "Ibm" for product "Vios"				3.1 Search vendor "Ibm" for product "Vios" and version "3.1"		-		Affected
Ibm Search vendor "Ibm"		Aix Search vendor "Ibm" for product "Aix"				7.1 Search vendor "Ibm" for product "Aix" and version "7.1"		-		Affected
Ibm Search vendor "Ibm"		Aix Search vendor "Ibm" for product "Aix"				7.2 Search vendor "Ibm" for product "Aix" and version "7.2"		-		Affected
Ibm Search vendor "Ibm"		Aix Search vendor "Ibm" for product "Aix"				7.3 Search vendor "Ibm" for product "Aix" and version "7.3"		-		Affected