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CVE-2018-9085
Missing System x Flash Memory Write Protection Lock Bit
Medium4.9EPSS 0.66%
- Published
- Updated
- Reserved
- Assigned by
- lenovo
Description
A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium4.9 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.66% · top 48% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Weakness
- Denial of service
- CWE-276 (opens in a new tab)All about CWE-276 and its CVEs
Affected products
- affected unspecified – < varies
- affected unspecified – < varies
What to do
Solution: Update UEFI firmware
References (1)
- https://support.lenovo.com/us/en/solutions/LEN-24477 (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)
- 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://trackcve.app/cve/CVE-2018-9085)Record last updated .