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CVE-2005-3263

20
FAUCET Score

CVE-2005-3263 describes a stack-based buffer overflow in UNACEV2.DLL, affecting RARLAB WinRAR versions 2.90 through 3.50. This vulnerability allows remote attackers to execute arbitrary code by crafting an ACE archive with an excessively long filename. With a CVSS score of 7.5, it is considered highly severe, requiring no authentication and having low attack complexity, potentially leading to partial confidentiality, integrity, and availability compromise. Despite its age and severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.90CPE matchmatch criteria
cpe:2.3:a:rarlab:winrar:2.90:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:rarlab:winrar:3.0.0:*:*:*:*:*:*:*
3.10CPE matchmatch criteria
cpe:2.3:a:rarlab:winrar:3.10:*:*:*:*:*:*:*
3.10_beta3CPE matchmatch criteria
cpe:2.3:a:rarlab:winrar:3.10_beta3:*:*:*:*:*:*:*
3.10_beta5CPE matchmatch criteria
cpe:2.3:a:rarlab:winrar:3.10_beta5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.69%
Probability of exploitation in next 30 days
EPSS Percentile
88.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0369 is in the 80th percentile among its peer group of 51,455 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, 0.1 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/fulldisclosure/2005-10/0266.html
secunia.com / advisories/16973
PatchVendor Advisory
secunia.com / secunia_research/2005-53/advisory
PatchVendor Advisory
osvdb.org / 19915
rarlabs.com / rarnew.htm
securityfocus.com / bid/15062
Patch