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CVE-2021-43429

25
FAUCET Score

CVE-2021-43429 is a Denial of Service vulnerability affecting the CORTX-S3 Server, specifically due to a failure to release locks in the mempool_destroy method. It carries a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity and without user interaction, leading to a complete denial of service. While no public exploits or active exploitation have been observed, and community discussion is minimal, organizations using CORTX-S3 Server should address this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2021-11-07CPE matchmatch criteria
cpe:2.3:a:seagate:cortx-s3_server:2021-11-07:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.91%
Probability of exploitation in next 30 days
EPSS Percentile
56.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0091 is in the 31st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

github.com / Seagate/cortx-s3server/issues/1037
ExploitIssue TrackingThird Party Advisory
github.com / Seagate/cortx-s3server/pull/1041
Issue TrackingThird Party Advisory