CVE-2018-1087
kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in…
- 8.0HighCVSS base score
- 0.74%Exploitation in 30 daysEPSS · top 45% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.
Timeline
ID reserved
By redhat
- 5 months later
· 5 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | High8.0 | CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.0 | High7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.74% · top 45% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.0.
Affected products
References
14
- RHSA-2018:1347 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1087 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1040862 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2018:1348 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-4196 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2018:1355 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:1345 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://access.redhat.com/security/vulnerabilities/pop_ss (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2018:1318 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:1524 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.openwall.com/lists/oss-security/2018/05/08/5 (opens in a new tab)x_refsource_MISCx_transferred
- 104127 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-3641-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3641-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-11737 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-1087)Record last updated .