LOW
CVE-2019-6156
CWE-667Published: April 10, 2019· Updated: Jun 17, 2026
3.3
CVSS v3.1
Official Description
In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer of protection is provided by SPI Protected Range Registers (PRx). Lenovo was notified that after resuming from S3 sleep mode in various versions of BIOS for Lenovo systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.
Technical Analysis
CVE-2019-6156 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Vendors & Products
Lenovo354 product(s)
510-15ikl firmware510-15ikl510s-08ikl firmware510s-08iklideacentre 300-20ish firmwareideacentre 300-20ishideacentre 300s-11ish firmwareideacentre 300s-11ishideacentre 510-15icb firmwareideacentre 510-15icbideacentre 510a-15icb firmwareideacentre 510a-15icb+342
Source: NVD CPE · 354 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://support.lenovo.com/solutions/LEN-26332Patch · Vendor Advisory
→
https://support.lenovo.com/solutions/LEN-26332Patch · Vendor Advisory
Quick Facts
CVE IDCVE-2019-6156
CVSS Score3.3 / 10
SeverityLOW
WeaknessCWE-667
CISA KEVNo
Affected1 vendor(s)
PublishedApr 10, 2019
Related CVEs (CWE-667)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-6156 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.