CVE-2021-37625

mediumpriority · track · 30EPSS 0.009 · 61 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.94% (61st) EPSS

CVSS 5 · medium

Is it mine?

19 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-26

Skytable is an open source NoSQL database. In versions prior to 0.6.4 an incorrect check of return value of the accept function in the run-loop for a TCP socket/TLS socket/TCP+TLS multi-socket causes an early exit from the run loop that should continue infinitely unless terminated by a local user, effectively causing the whole database server to shut down. This has severe impact and can be used to easily cause DoS attacks without the need to use much bandwidth. The attack vectors include using an incomplete TLS connection for example by not providing the certificate for the connection and using a specially crafted TCP packet that triggers the application layer backoff algorithm.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security-advisories@github.comexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-252USprimaryCWE-253US

affected products (19)

Products and version ranges known to be affected.

skytable skytable≤ < 0.6.4enisa_euvdEU
skytable skytable= 0.1.0nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.2.0nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.3.0nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.3.1nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.3.2nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.4.0nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.4.1nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.4.2nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.4.3nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.4.4nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.4.5nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.5.0nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.5.1nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.5.2nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.6.0nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.6.1nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.6.2nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*
skytable skytable= 0.6.3nvdUScpe:2.3:a:skytable:skytable:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-08-05modified 2026-06-17

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+326 more

references (10)

External citations — patches, advisories, analysis.

scry

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