Microsoft · s390/mm: Add missing secure storage access fixups for donated memory
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in b36b0e804aee5f20c6798dbeaeaa7cfdb7c6cf88 : update Microsoft when convenient.
Data as of 30 Oct 2026, 06:59 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- 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 b36b0e804aee5f20c6798dbeaeaa7cfdb7c6cf88, b00be77302d7ec4ad0367bb236494fce7172b730, 74ccc099f1baa9236b8fb600406457a0870c83a9 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Apr 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 29 Oct 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
CVE-2026-31568 is a vulnerability identified by the Microsoft Security Response Center related to missing secure storage access fixups for donated memory in the s390/mm component. The affected versions are specifically version 2.0 and 3.0 of the product. No CVSS score or detailed technical exploitation information is provided. There are no known exploits in the wild at this time.