HOMEVULNERABILITIESCVE-2015-8109
HIGH

CVE-2015-8109

CWE-255Published: April 24, 2017· Updated: Jun 17, 2026

7.0
CVSS v3.1

Official Description

Lenovo System Update (formerly ThinkVantage System Update) before 5.07.0019 allows local users to gain privileges by making a prediction of tvsu_tmp_xxxxxXXXXX account credentials that requires knowledge of the time that this account was created, aka a "temporary administrator account vulnerability."

NVD Source

Technical Analysis

CVE-2015-8109 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.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.0.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Lenovo1 product(s)
lenovo system update
Source: NVD CPE · 1 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

ADVISORYhttps://ioactive.com/pdfs/IOActive_Advisory_Lenovo_SystemUpdate-Insecure-Random-Admin-Password.pdf
ADVISORYhttps://support.lenovo.com/us/en/product_security/lsu_privilege
ADVISORYhttps://ioactive.com/pdfs/IOActive_Advisory_Lenovo_SystemUpdate-Insecure-Random-Admin-Password.pdf
ADVISORYhttps://support.lenovo.com/us/en/product_security/lsu_privilege

All References (6)

→
http://www.securityfocus.com/bid/98039
→
https://ioactive.com/pdfs/IOActive_Advisory_Lenovo_SystemUpdate-Insecure-Random-Admin-Password.pdfExploit · Third Party Advisory
→
https://support.lenovo.com/us/en/product_security/lsu_privilegeVendor Advisory
→
http://www.securityfocus.com/bid/98039
→
https://ioactive.com/pdfs/IOActive_Advisory_Lenovo_SystemUpdate-Insecure-Random-Admin-Password.pdfExploit · Third Party Advisory
→
https://support.lenovo.com/us/en/product_security/lsu_privilegeVendor Advisory

Quick Facts

CVE IDCVE-2015-8109
CVSS Score7.0 / 10
SeverityHIGH
WeaknessCWE-255
CISA KEVNo
Affected1 vendor(s)
PublishedApr 24, 2017

Related CVEs (CWE-255)

CVE-2009-3710
10.0
CVE-2009-4188
10.0
CVE-2011-0354
10.0
CVE-2013-5755
10.0
CVE-2010-4233
10.0
CVE-2009-4189
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2015-8109 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.
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