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CVE-2015-5663

19
FAUCET Score

CVE-2015-5663 describes a local privilege escalation vulnerability in WinRAR versions prior to 5.30 beta 5. An attacker could exploit this by crafting a malicious file with a name similar to an extensionless file selected by a user, leading to arbitrary code execution with elevated privileges. While rated as High severity (CVSS 7.4) due to its potential for full confidentiality, integrity, and availability impact, the attack complexity is high. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.30CPE matchmatch criteria
cpe:2.3:a:rarlab:winrar:*:beta_4:*:*:*:*:x64:*
<= 5.30CPE matchmatch criteria
cpe:2.3:a:rarlab:winrar:*:beta_4:*:*:*:*:x86:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.4
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.91%
Probability of exploitation in next 30 days
EPSS Percentile
56.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0091 is in the 92nd percentile among its peer group of 157 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvndb.jvn.jp / jvndb/JVNDB-2015-000199
Vendor Advisory
jvn.jp / en/jp/JVN64636058/index.html
Vendor Advisory
securityfocus.com / bid/79666
securitytracker.com / id/1034881