CVE-2026-32226 | BDVDB-2026-327007 Detail

MicrosoftMicrosoft .NET Framework 3.5

Description#

Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.

Weaknesses#

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

References#

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32226

Exploit#

No public exploit known

History#

Version 12026-04-14Record published in the CVE List.
Version 22026-10-15Most recent update recorded in the CVE List.

Published

Published: 2026-04-14
Last modified: 2026-10-15

Vendor information

Vendor: Microsoft
Product: Microsoft .NET Framework 3.5

All Microsoft vulnerabilities

Score

5.9 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 45.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Race Condition

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 3.5.0 and < 2.0.50727.8982 & 3.0.30729.8976
Fixed
2.0.50727.8982 & 3.0.30729.8976

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.9 Medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).