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CVE-2026-46000VulnerabilityPublished Updated

Microsoft · rxrpc: Fix conn-level packet handling to unshare RESPONSE packets

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-46000· Medium

Not known to be exploited · fixed in d9b93a0f57ca5f6831bfaa34014b6cd705564a00 : update Microsoft when convenient.

Data as of 30 Oct 2026, 11:52 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in d9b93a0f57ca5f6831bfaa34014b6cd705564a00, ca71ac2de389b01eecdc48bfafbdf073ec232044, c0428a22daf69714dc042b67ea759956b74c74e5 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

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

    Not in CISA KEV and no source reports exploitation

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

    No attack traffic recorded by OffSeq Mirage sensors

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 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < d9b93a0f57ca5f6831bfaa34014b6cd705564a00
Fixed in
  • d9b93a0f57ca5f6831bfaa34014b6cd705564a00
LinuxLinuxAffected
  • ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < ca71ac2de389b01eecdc48bfafbdf073ec232044
Fixed in
  • ca71ac2de389b01eecdc48bfafbdf073ec232044
LinuxLinuxAffected
  • ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < c0428a22daf69714dc042b67ea759956b74c74e5
Fixed in
  • c0428a22daf69714dc042b67ea759956b74c74e5
LinuxLinuxAffected
  • ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < ae19f6a54206534a85830dd92985f5f41441d241
Fixed in
  • ae19f6a54206534a85830dd92985f5f41441d241
LinuxLinuxAffected
  • ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < 24481a7f573305706054c59e275371f8d0fe919f
Fixed in
  • 24481a7f573305706054c59e275371f8d0fe919f
LinuxLinuxAffected
  • ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < 98a2046d155f73f6cf5d2c493c5e09b4963e2e12
Fixed in
  • 98a2046d155f73f6cf5d2c493c5e09b4963e2e12

Description

CVE-2026-46000 addresses a vulnerability in the rxrpc component related to connection-level packet handling, specifically the unsharing of RESPONSE packets. The available information is limited and does not provide technical details beyond the title. There is no CVSS score or detailed impact description provided. No known exploits are reported in the wild. The affected products include Microsoft and Azure Linux 3.0 versions.

References

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