CVE-2021-44509: An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base)

Q: How do I fix CVE-2021-44509?

gt.m: upgrade to newer than 7.0-000. Exact commands for each OS are on this page.

Q: Is CVE-2021-44509 being exploited?

CVE-2021-44509 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-44509 affect?

CVE-2021-44509 affects gt.m. Severity is high (CVSS 7.5). An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Using crafted input, attackers can cause an integer underflow of the size of calls to memset in op_fnj3 in sr_port/op_fnj3.c in order to cause a segmen

Q: How urgent is CVE-2021-44509?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2021-44509 is a high-severity flaw (CVSS 7.5) affecting gt.m. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Using crafted input, attackers can cause an integer underflow of the size of calls to memset in op_fnj3 in sr_port/op_fnj3.c in order to cause a segmentation fault and crash the application.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-191
Published	2022-04-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fisglobal

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-04-15 18:15 UTCPublished CVE record published
2026-06-17 04:12 UTCUpdated Record last modified

fisglobal gt.m UPGRADE

Affected: <= 7.0-000

Fixed in: newer than 7.0-000

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gt.m || rpm -q gt.m || gt.m --version

2. UPGRADE to newer than 7.0-000 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gt.m

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gt.m

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-44509?

gt.m: upgrade to newer than 7.0-000. Exact commands for each OS are on this page.

Is CVE-2021-44509 being exploited?

CVE-2021-44509 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-44509 affect?

CVE-2021-44509 affects gt.m. Severity is high (CVSS 7.5). An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Using crafted input, attackers can cause an integer underflow of the size of calls to memset in op_fnj3 in sr_port/op_fnj3.c in order to cause a segmen

How urgent is CVE-2021-44509?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-44510 HIGH 7.5 UPGRADE An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base)
CVE-2021-44508 HIGH 7.5 UPGRADE An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base)
CVE-2021-44507 HIGH 7.5 UPGRADE An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base)
CVE-2021-44506 HIGH 7.5 UPGRADE An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base)
CVE-2021-44505 HIGH 7.5 UPGRADE An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base)

References

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