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CVE-2026-43500VulnerabilityPublished Updated

Microsoft · rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present

Affects MicrosoftSource GCVE Database

0
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Public exploit available (Metasploit, Exploit-DB) · 94% EPSS.

Data as of 30 Oct 2026, 06:59 UTC

Exploit forecast

Likely to be exploited

94.1% EPSS · Medium severity · No CVSS score from NVD or the CNA

EPSS
94.1% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 2 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE published

    on cve.org

    , t = 0

  2. First Exploit-DB entry (opens in a new tab)

    Linux Kernel - Local Privilege Escalation +1 more

    , 25 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Microsoft Security Response Center MicrosoftAffected
  • =3.0
Fixed in–

Description

CVE-2026-43500 is a vulnerability related to the handling of DATA/RESPONSE packets in the rxrpc protocol when paged fragments are present. The vulnerability affects Microsoft product version 3.0. No CVSS score or detailed technical impact information is provided. There are no known exploits in the wild and no patch or remediation details are available from the provided data.

References

Community reviews

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