Microsoft · netfilter: ipset: mark the rcu locked areas properly
Affects MicrosoftSource GCVE Database
Not known to be exploited · CVSS 7.8 High · fixed in eee5172741b2c0e73210020732043e5d589295d3 : patch Microsoft soon.
Data as of 2 Nov 2026, 10:58 UTC
Thin evidence
One scorer or none| CNA (Linux) | CVSS 3.1 | 7.8 |
|---|
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in eee5172741b2c0e73210020732043e5d589295d3, ecb48c6b9edc78de8dd456c365727ae14b88c1ee, ca9fab1ca15534cef1630e81a479e94b3bbcdb6a +6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 23 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
|
| LinuxLinux | Affected
| Fixed in– |
Description
CVE-2026-98899 is a vulnerability related to netfilter's ipset component involving improper marking of RCU locked areas. The advisory provides no further technical details or impact description. The affected versions are Microsoft products version 3.0 and 4.0. No CVSS score or exploit information is available.