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CVE-2018-3640
Systems with microprocessors utilizing speculative execution and that perform speculative reads of system registers may allow unauthorized…
- 5.6MediumCVSS base score
- 7.1%Exploitation in 30 daysEPSS · top 5.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Systems with microprocessors utilizing speculative execution and that perform speculative reads of system registers may allow unauthorized disclosure of system parameters to an attacker with local user access via a side-channel analysis, aka Rogue System Register Read (RSRE), Variant 3a.
Timeline
ID reserved
By intel
- 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.6 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 7.1% · top 5.7% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.6.
Affected products
- affected Multiple
References
22
- https://cert-portal.siemens.com/productcert/pdf/ssa-268644.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.lenovo.com/us/en/solutions/LEN-22133 (opens in a new tab)x_refsource_CONFIRMx_transferred
- TA18-141A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 1042004 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1040949 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0005 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.synology.com/support/security/Synology_SA_18_23 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability (opens in a new tab)x_refsource_CONFIRMx_transferred
- VU#180049 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- http://www.fujitsu.com/global/support/products/software/security/products-f/cve-2018-3639e.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV180013 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20180522 CPU Side-Channel Information Disclosure Vulnerabilities: May 2018 (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-18-0006 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20180916 [SECURITY] [DLA 1506-1] intel-microcode security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- DSA-4273 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03850en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- 104228 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [debian-lts-announce] 20180727 [SECURITY] [DLA 1446-1] intel-microcode security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3756-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://security.netapp.com/advisory/ntap-20180521-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf (opens in a new tab)x_refsource_CONFIRMx_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-2018-15494 (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-2018-3640)Record last updated .