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CVE-2015-5735

18
FAUCET Score

CVE-2015-5735 describes a critical vulnerability in Fortinet FortiClient versions prior to 5.2.4, specifically within the mdare64_48.sys, mdare32_48.sys, mdare32_52.sys, and mdare64_52.sys drivers. This flaw allows a local attacker to achieve arbitrary memory write capabilities through a crafted 0x226108 ioctl call. With a CVSS score of 7.2, this vulnerability has high impact on confidentiality, integrity, and availability, but requires local access and low attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2.3CPE matchmatch criteria
cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
40.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 62nd percentile among its peer group of 3,241 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

fortinetvendor investigatingvia nvd_reference
View patch

References

fortiguard.com / advisory/mulitple-vulnerabilities-in-forticlient
packetstormsecurity.com / files/133398/FortiClient-Antivirus-Information-Exposure-Access-Control.html
seclists.org / fulldisclosure/2015/Sep/0
coresecurity.com / advisories/forticlient-antivirus-multiple-vulnerabilities
fortiguard.com / advisory/mulitple-vulnerabilities-in-forticlient
Vendor Advisory
securityfocus.com / archive/1/536369/100/0/threaded
securitytracker.com / id/1033439