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CVE-2021-29862

20
FAUCET Score

CVE-2021-29862 describes a denial-of-service vulnerability in the AIX kernel affecting IBM AIX versions 7.1, 7.2, and VIOS 3.1. This medium-severity flaw (CVSS 5.5) can be exploited locally by a non-privileged user with low attack complexity, leading to a complete loss of availability for the affected system. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage regarding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.1CPE matchmatch criteria
cpe:2.3:a:ibm:vios:3.1:*:*:*:*:*:*:*
7.1CPE matchmatch criteria
cpe:2.3:o:ibm:aix:7.1:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:o:ibm:aix:7.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.2MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
13.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 61st percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/206086
VDB EntryVendor Advisory
ibm.com / support/pages/node/6483875
PatchVendor Advisory