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CVE-2026-99043VulnerabilityPublished Updated

Microsoft · ice: fix metadata_dst refcount handling on representor teardown

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99043· High

Not known to be exploited · fixed in beb05f484a1e4a5a66e3678e4b7f3147f651c080 : patch Microsoft soon.

Data as of 7 Nov 2026, 12:35 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in beb05f484a1e4a5a66e3678e4b7f3147f651c080, 58858b8f14803a7eeac297b3ce20f3b21bf2ff66, 41f0d9ab158fb51f34bded5f8a40918e4f70b2b6 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ f5396b8a663f7a78ee5b75a47ee524b40795b265, < beb05f484a1e4a5a66e3678e4b7f3147f651c080
Fixed in
  • beb05f484a1e4a5a66e3678e4b7f3147f651c080
LinuxLinuxAffected
  • ≥ f5396b8a663f7a78ee5b75a47ee524b40795b265, < 58858b8f14803a7eeac297b3ce20f3b21bf2ff66
Fixed in
  • 58858b8f14803a7eeac297b3ce20f3b21bf2ff66
LinuxLinuxAffected
  • ≥ f5396b8a663f7a78ee5b75a47ee524b40795b265, < 41f0d9ab158fb51f34bded5f8a40918e4f70b2b6
Fixed in
  • 41f0d9ab158fb51f34bded5f8a40918e4f70b2b6
LinuxLinuxAffected
  • ≥ f5396b8a663f7a78ee5b75a47ee524b40795b265, < 6f5544f53f1e58ea8a49fb9f9158d5793b9205b0
Fixed in
  • 6f5544f53f1e58ea8a49fb9f9158d5793b9205b0
LinuxLinuxAffected
  • ≥ f5396b8a663f7a78ee5b75a47ee524b40795b265, < 5e4d20db5179e83a4948927bc39e489a9a83256d
Fixed in
  • 5e4d20db5179e83a4948927bc39e489a9a83256d
LinuxLinuxAffected
  • ≥ f5396b8a663f7a78ee5b75a47ee524b40795b265, < 1f263235651775f93c15d90c9f25c3f4a4ef6512
Fixed in
  • 1f263235651775f93c15d90c9f25c3f4a4ef6512

Description

A vulnerability identified as CVE-2026-99043 involves improper reference count handling of metadata_dst during representor teardown in Microsoft software versions 3.0 and 4.0. The issue relates to the ice component. No detailed impact or exploitation information is provided.

References

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