CVE-2015-2234 — Race condition in Lenovo System Update (formerly ThinkVantage System Update) before 5.06.0034 uses world-writable permissions for the update files directory, which allows local users to gain privileges by writing to an update file after the signature is validated

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MEDIUM

Race condition in Lenovo System Update (formerly ThinkVantage System Update) before 5.06.0034 uses world-writable permissions for the update files directory, which allows local users to gain privileges by writing to an update file after the signature is validated

Published May 12, 2015

6.9

MEDIUM

CVSS 2.0

EPSS 0.27%

Description

Race condition in Lenovo System Update (formerly ThinkVantage System Update) before 5.06.0034 uses world-writable permissions for the update files directory, which allows local users to gain privileges by writing to an update file after the signature is validated.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.27% 0.00269

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00269

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.27% (0.00269)	17.25th	v5 (v2026.06.15)
Jun 15, 2026	0.27% (0.00269)	18.28th	v5 (v2026.06.15)
Mar 17, 2025	0.09% (0.00087)	22.81th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00042)	5.07th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	0.95% (0.00950)	32.28th	v2 (v2022.01.01)
Sep 10, 2022	0.95% (0.00950)	30.63th	v2 (v2022.01.01)
Apr 1, 2022	0.95% (0.00950)	28.61th	v2 (v2022.01.01)
Feb 4, 2022	0.95% (0.00950)	13.46th	v2 (v2022.01.01)

Weaknesses (1)

CWE-362

Race Condition

References (4)

http://securitytracker.com/id/1032268
vdb-entryx_refsource_SECTRACK
http://support.lenovo.com/us/en/product_security/lsu_privilege
x_refsource_CONFIRMVendor Advisory
http://www.ioactive.com/pdfs/Lenovo_System_Update_Multiple_Privilege_Escalations.pdf
x_refsource_MISC
http://www.securityfocus.com/bid/74634
vdb-entryx_refsource_BID

Link	Providers	Tags
http://securitytracker.com/id/1032268		vdb-entryx_refsource_SECTRACK
http://support.lenovo.com/us/en/product_security/lsu_privilege		x_refsource_CONFIRMVendor Advisory
http://www.ioactive.com/pdfs/Lenovo_System_Update_Multiple_Privilege_Escalations.pdf		x_refsource_MISC
http://www.securityfocus.com/bid/74634		vdb-entryx_refsource_BID

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published May 12, 2015

Updated Aug 6, 2024

Reserved Mar 6, 2015

Link CVE-2015-2234

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-2234

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-2234