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CVE-2026-99153VulnerabilityPublished

Microsoft · scsi: libiscsi: Validate the ITT reflected

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99153· High

Not known to be exploited · fixed in d79343ae3223b3f7f74b55e79f8a1371fa3f4b1a : patch Microsoft soon.

Data as of 29 Oct 2026, 11:47 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in d79343ae3223b3f7f74b55e79f8a1371fa3f4b1a, c5958c770b2a0ee492414e26b07da9164a0d1f5d, 7215a69b6456fda79c0935c2959045dff3fcaac8

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 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 29 Oct 2026.

What to do

Upgrade Linux to d79343ae3223b3f7f74b55e79f8a1371fa3f4b1a, c5958c770b2a0ee492414e26b07da9164a0d1f5d or 7215a69b6456fda79c0935c2959045dff3fcaac8.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 8afa1439fcff58da8f28c1d083046f229f6ab3de, < d79343ae3223b3f7f74b55e79f8a1371fa3f4b1a
Fixed in
  • d79343ae3223b3f7f74b55e79f8a1371fa3f4b1a
LinuxLinuxAffected
  • ≥ 8afa1439fcff58da8f28c1d083046f229f6ab3de, < c5958c770b2a0ee492414e26b07da9164a0d1f5d
Fixed in
  • c5958c770b2a0ee492414e26b07da9164a0d1f5d
LinuxLinuxAffected
  • ≥ 8afa1439fcff58da8f28c1d083046f229f6ab3de, < 7215a69b6456fda79c0935c2959045dff3fcaac8
Fixed in
  • 7215a69b6456fda79c0935c2959045dff3fcaac8
LinuxLinuxAffected
  • =2.6.32
Fixed in–
Red Hatredhat/kernelpkg:rpm/redhat/kernelOther threatsAffected
  • =2.6.32
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

This vulnerability involves the SCSI libiscsi component failing to properly validate the Initiator Task Tag (ITT) reflected in a Reject Protocol Data Unit (PDU). The issue is identified in Microsoft product version 3.0. No detailed impact or exploitation information is provided.

References

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