CVE-2026-24497: Stack-based Buffer Overflow vulnerability in SimTech Systems, Inc

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CRITICAL 9.8REMOTEUPGRADE

CVE-2026-24497 is a critical-severity flaw (CVSS 9.8) affecting thinkwise. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based Buffer Overflow vulnerability in SimTech Systems, Inc. ThinkWise allows Remote Code Inclusion.This issue affects ThinkWise: from 7 through 23.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2026-02-27
Last modified	2026-06-17

Publisher (CNA): KrCERT/CC · Vendor: thinkwise

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

Am I affected?

Timeline

2026-02-27 02:16 UTCPublished CVE record published
2026-06-17 10:23 UTCUpdated Record last modified

thinkwise thinkwise UPGRADE

Affected: >= 7 and < 23

Fixed in: 23

Safe to downgrade to: a release before 7

1. Check installed version

apt-cache policy thinkwise || rpm -q thinkwise || thinkwise --version

2. UPGRADE to 23 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade thinkwise

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade thinkwise

Note

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

3. If no update is available yet, DOWNGRADE to a release before 7 (Debian / Ubuntu)

apt-cache madison thinkwise sudo apt install thinkwise=<VERSION_BEFORE_7> sudo apt-mark hold thinkwise

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list thinkwise sudo dnf downgrade thinkwise-<VERSION_BEFORE_7> sudo dnf versionlock add thinkwise

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-24497?

thinkwise: upgrade to 23. Exact commands for each OS are on this page.

Is CVE-2026-24497 being exploited?

CVE-2026-24497 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-2026-24497 affect?

CVE-2026-24497 affects thinkwise. Severity is critical (CVSS 9.8). Stack-based Buffer Overflow vulnerability in SimTech Systems, Inc. ThinkWise allows Remote Code Inclusion.This issue affects ThinkWise: from 7 through 23.

How urgent is CVE-2026-24497?

Priority 47/100. Critical severity; Remotely exploitable, no login, no user action

References

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