CVE-2026-56642: Stack-based buffer overflow in Microsoft Fabric Data Warehouse allows an authorized attacker to execute code o

This month

HIGH 8.8WATCHLISTMITIGATE

CVE-2026-56642 is a high-severity flaw (CVSS 8.8) affecting fabric data warehouse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in Microsoft Fabric Data Warehouse allows an authorized attacker to execute code over a network.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-121
Published	2026-07-14
Last modified	2026-10-24

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-14 18:18 UTCPublished CVE record published
2026-10-24 21:10 UTCUpdated Record last modified

microsoft fabric data warehouse MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy fabric-data-warehouse || rpm -q fabric-data-warehouse || fabric-data-warehouse --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · conda · FIXED · 26.9.4-2.fc46 · FEDORA-2026-09931756f1 · source

sudo dnf upgrade --advisory=FEDORA-2026-09931756f1

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-2026-56642?

fabric data warehouse: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-56642 being exploited?

CVE-2026-56642 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-2026-56642 affect?

CVE-2026-56642 affects fabric data warehouse. Severity is high (CVSS 8.8). Stack-based buffer overflow in Microsoft Fabric Data Warehouse allows an authorized attacker to execute code over a network.

How urgent is CVE-2026-56642?

Priority 51/100. High severity; On your watchlist

References

← Back to latest CVEs