CVE-2026-64197: There is an out-of-bounds write vulnerability in DASYLab due to improper validation of user-supplied data, res

Q: How do I fix CVE-2026-64197?

dasylab: upgrade to 2026.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-64197 being exploited?

CVE-2026-64197 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-2026-64197 affect?

CVE-2026-64197 affects dasylab. Severity is high (CVSS 7.8). There is an out-of-bounds write vulnerability in DASYLab due to improper validation of user-supplied data, resulting in a write past the end of an allocated data structure. Successful exploitation requires an attacker to get a user to open

Routine

HIGH 7.8UPGRADE

CVE-2026-64197 is a high-severity flaw (CVSS 7.8) affecting dasylab. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

There is an out-of-bounds write vulnerability in DASYLab due to improper validation of user-supplied data, resulting in a write past the end of an allocated data structure. Successful exploitation requires an attacker to get a user to open a specially crafted .DSB file. This issue affects all versions before 2026.0.0.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-787
Published	2026-09-03
Last modified	2026-09-22

Publisher (CNA): National Instruments · Vendor: ni

Last updated 2026-09-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-03 22:18 UTCPublished CVE record published
2026-09-22 18:33 UTCUpdated Record last modified

ni dasylab UPGRADE

Affected: < 2026.0 · 2026.0 · 2026.0 build_32

Fixed in: 2026.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2026.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dasylab

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-2026-64197?

dasylab: upgrade to 2026.0. Exact commands for each OS are on this page.

Is CVE-2026-64197 being exploited?

CVE-2026-64197 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-2026-64197 affect?

CVE-2026-64197 affects dasylab. Severity is high (CVSS 7.8). There is an out-of-bounds write vulnerability in DASYLab due to improper validation of user-supplied data, resulting in a write past the end of an allocated data structure. Successful exploitation requires an attacker to get a user to open

How urgent is CVE-2026-64197?

Priority 29/100. High severity

Related CVEs

CVE-2026-64195 HIGH 7.8 UPGRADE There is an out-of-bounds write vulnerability in DASYLab due to lack of proper validation of user-supplied dat
CVE-2026-64196 HIGH 7.8 UPGRADE There is an out-of-bounds write vulnerability in DASYLab due to improper validation of user-supplied data, res
CVE-2026-64198 HIGH 7.8 UPGRADE There is an out-of-bounds read vulnerability in DASYLab due to improper validation of user-supplied data
CVE-2026-64199 HIGH 7.8 UPGRADE There is an out-of-bounds read vulnerability in DASYLab due to improper validation of user-supplied data
CVE-2026-64200 HIGH 7.8 UPGRADE There is an out-of-bounds read vulnerability in DASYLab due to improper validation of user-supplied data

References

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