CVE-2021-44493

Name: CVE-2021-44493
Creator: NVD / NIST
Published: 2022-04-15T18:15:08.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2021-44493 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an attacker can cause a call to $Extract to force an signed integer holding the size of a buffer to take on a large negative number, which is then used as the length of a memcpy call that occurs on the stack, causing a buffer overflow.. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an attacker can cause a call to $Extract to force an signed integer holding the size of a buffer to take on a large negative number, which is then used as the length of a memcpy call that occurs on the stack, causing a buffer overflow.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.57%

72.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Fisglobal	Gt.M	<= 7.0-000
Yottadb	Yottadb	<= 1.32

References

http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.htmlRelease Notes, Third Party Advisory
https://gitlab.com/YottaDB/DB/YDB/-/issues/828Issue Tracking, Patch, Third Party Advisory
https://sourceforge.net/projects/fis-gtm/files/Product, Third Party Advisory
http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.htmlRelease Notes, Third Party Advisory
https://gitlab.com/YottaDB/DB/YDB/-/issues/828Issue Tracking, Patch, Third Party Advisory
https://sourceforge.net/projects/fis-gtm/files/Product, Third Party Advisory

Timeline

Published: Apr 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44493?

How severe is CVE-2021-44493?

CVE-2021-44493 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44493?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44493?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST