aevent size calculation · xfrm: account XFRMA_IF_ID
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in f8f3bb89ab677db15f9f5250c77af728f9afe995 : patch Microsoft soon.
Data as of 10 Nov 2026, 23:24 UTC
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 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in f8f3bb89ab677db15f9f5250c77af728f9afe995, e62e322ea20be78e346e4b49f9a6b9f03313af4c, b7dbdc34d22f743abb2c460dfae0d69cd8a45e69 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 10 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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Description
CVE-2026-43107 is a vulnerability related to the xfrm subsystem involving the account XFRMA_IF_ID in an event size calculation. The available information is minimal and does not provide technical details about the nature of the vulnerability or its impact. The affected product is Microsoft software version 3.0.