Microsoft · nfp: hold IPsec RX state under the XArray lock
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488 : patch Microsoft soon.
Data as of 2 Nov 2026, 10:58 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488, dd765023bb54f9650f8b9137906fb2c4a554dd1d, c1b1639fb138db52fcfbd1747e92f2454076c6d5 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 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 2 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| 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– |
Description
This vulnerability, identified as CVE-2026-98561, relates to the handling of IPsec RX state under the XArray lock in Microsoft software versions 3.0 and 4.0. No detailed technical information or impact description is provided. The advisory references Microsoft's support lifecycle for further information.