CVE-2015-7358

Name: CVE-2015-7358
Creator: NVD / NIST
Published: 2017-10-03T01:29:00.717+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.20%

Last modified Jun 17, 2026

CVE-2015-7358 is a vulnerability of currently unknown severity. The IsDriveLetterAvailable method in Driver/Ntdriver.c in TrueCrypt 7.0, VeraCrypt before 1.15, and CipherShed, when running on Windows, does not properly validate drive letter symbolic links, which allows local users to mount an encrypted volume over an existing drive letter and gain privileges via an entry in the /GLOBAL?? directory.. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

Description

The IsDriveLetterAvailable method in Driver/Ntdriver.c in TrueCrypt 7.0, VeraCrypt before 1.15, and CipherShed, when running on Windows, does not properly validate drive letter symbolic links, which allows local users to mount an encrypted volume over an existing drive letter and gain privileges via an entry in the /GLOBAL?? directory.

Metrics

EPSS Probability

1.20%

64.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Ciphershed	Ciphershed	<= 0.7.5.0
Idrix	Veracrypt	<= 1.14
Truecrypt	Truecrypt	7.0

References

http://packetstormsecurity.com/files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2015/09/22/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/09/24/3Issue Tracking, Mailing List, Third Party Advisory
https://code.google.com/p/google-security-research/issues/detail?id=538Third Party Advisory
https://veracrypt.codeplex.com/wikipage?title=Release%20NotesRelease Notes, Vendor Advisory
https://www.exploit-db.com/exploits/38403/Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2015/09/22/7Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/09/24/3Issue Tracking, Mailing List, Third Party Advisory
https://code.google.com/p/google-security-research/issues/detail?id=538Third Party Advisory
https://veracrypt.codeplex.com/wikipage?title=Release%20NotesRelease Notes, Vendor Advisory
https://www.exploit-db.com/exploits/38403/Third Party Advisory, VDB Entry

Timeline

Published: Oct 3, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7358?

How severe is CVE-2015-7358?

Severity scoring for CVE-2015-7358 is pending analysis. The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7358?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-7358?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST