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CVE-2026-46110VulnerabilityPublished Updated

Microsoft · net: stmmac: Prevent NULL deref when RX memory exhausted

Affects MicrosoftSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 11:52 UTC

Severity
Medium

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

EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 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

Affected software

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

Description

CVE-2026-46110 is a vulnerability in the stmmac network driver component related to handling RX memory exhaustion. It involves a potential NULL pointer dereference when the receive memory is exhausted. This could lead to a denial of service or system instability. The vulnerability affects Microsoft products including Azure Linux kernel version 3.0. No CVSS score is provided, and there are no known exploits in the wild. No patch or remediation details are currently available from the vendor advisory. Users should monitor official Microsoft Security Response Center communications for updates.

References

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