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CVE-2015-7358

30
FAUCET Score

CVE-2015-7358 is a local privilege escalation vulnerability affecting TrueCrypt 7.0, VeraCrypt before 1.15, and CipherShed on Windows. The flaw lies in the IsDriveLetterAvailable method, which fails to properly validate drive letter symbolic links, allowing a local attacker to mount an encrypted volume over an existing drive letter and gain privileges via the /GLOBAL?? directory. This vulnerability carries a CVSS v3 score of 7.8 (High), indicating a significant risk. It requires local access and low privileges, but once exploited, it can lead to high confidentiality, integrity, and availability impacts. The attack complexity is low, making it relatively easy to exploit for an authenticated local user. While not listed on the CISA KEV catalog, exploit code for this vulnerability, specifically EDB-38403, is publicly available on ExploitDB. There is also community discussion and media coverage surrounding this flaw, suggesting awareness among security researchers and the public.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.7.5.0CPE matchmatch criteria
cpe:2.3:a:ciphershed:ciphershed:*:*:*:*:*:*:*:*
<= 1.14CPE matchmatch criteria
cpe:2.3:a:idrix:veracrypt:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:truecrypt:truecrypt:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.20%
Probability of exploitation in next 30 days
EPSS Percentile
64.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-38403 · Oct 5, 2015
This CVE's current EPSS score of 0.0120 is in the 94th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.html
Third Party AdvisoryVDB Entry
code.google.com / p/google-security-research/issues/detail
Third Party Advisory
veracrypt.codeplex.com / wikipage
Release NotesVendor Advisory
exploit-db.com / exploits/38403
Third Party AdvisoryVDB Entry
openwall.com / lists/oss-security/2015/09/22/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2015/09/24/3
Issue TrackingMailing ListThird Party Advisory