Is CVE-2026-33827 actively exploited?

No active exploitation of CVE-2026-33827 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33827 be exploited remotely?

Yes. CVE-2026-33827 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33827?

CVE-2026-33827 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-33827

HIGH

CVE-2026-33827

CWE-362Published: April 14, 2026· Updated: Apr 17, 2026

8.1

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:17.4th

Official Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

NVD Source

Technical Analysis

CVE-2026-33827 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

Microsoft14 products

windows 10 1607windows 10 1809windows 10 21h2windows 10 22h2windows 11 23h2windows 11 24h2windows 11 25h2windows 11 26h1windows server 2012windows server 2016windows server 2019windows server 2022+2 more

Source: NVD CPE · 15 total CPE entries