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CVE-2021-37625

24
FAUCET Score

CVE-2021-37625 is a Denial-of-Service (DoS) vulnerability affecting Skytable, an open-source NoSQL database, in versions prior to 0.6.4. The flaw stems from an incorrect return value check of the accept function in the run-loop for TCP/TLS sockets, allowing an attacker to prematurely terminate the server. This vulnerability has a CVSS score of 7.5 (HIGH) due to its network-based attack vector, low complexity, and high impact on availability, enabling easy DoS attacks with minimal bandwidth. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.1.0CPE matchmatch criteria
cpe:2.3:a:skytable:skytable:0.1.0:*:*:*:*:*:*:*
0.2.0CPE matchmatch criteria
cpe:2.3:a:skytable:skytable:0.2.0:*:*:*:*:*:*:*
0.3.0CPE matchmatch criteria
cpe:2.3:a:skytable:skytable:0.3.0:*:*:*:*:*:*:*
0.3.1CPE matchmatch criteria
cpe:2.3:a:skytable:skytable:0.3.1:*:*:*:*:*:*:*
0.3.2CPE matchmatch criteria
cpe:2.3:a:skytable:skytable:0.3.2:*:*:*:*:*:*:*

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
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 32nd 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / skytable/skytable/commit/bb19d024ea1e5e0c9a3d75a9ee58ff03c70c7e5d
PatchThird Party Advisory
github.com / skytable/skytable/security/advisories/GHSA-q27r-h25m-hcc7
Third Party Advisory
security.skytable.io / ve/s/00002.html
PatchVendor Advisory