Microsoft · bpf: Fix bounds check for skb-backed dynptrs
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in ed6eec97b534979dcf28b40c389cee57bd6561d4 : patch Microsoft soon.
Data as of 2 Nov 2026, 08:45 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- Patch
- Available – fixed in ed6eec97b534979dcf28b40c389cee57bd6561d4, 1196903a27cac5c929c7517e987a8d159f20c5e5, 37877a24758068742fef687a7cf5362360dde1d1 +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 1 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– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
CVE-2026-98591 is a vulnerability related to a bounds check issue for skb-backed dynamic pointers in Microsoft software versions 3.0 and 4.0. The advisory does not provide detailed technical information or impact specifics. No CVSS score or exploit information is available.