CVE-2009-4645

Exp

Directory traversal vulnerability in web_client_user_guide.html in Accellion Secure File Transfer Appliance before 8_0_105 allows remote attackers to read arbitrary files via a .. (dot dot) in the lang parameter.

Published: 2010-02-19 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4645 is rated High Exploit Risk (80.8/100): CVSS High severity, with high exploitation likelihood (EPSS 6.28%, 91th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.85% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-4645

EDB-ID Source Kind Published Link
33622 exploit_db edb 2010-02-10 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4645

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-29 3.43% 6.28% +2.85%
2 2025-09-09 2.56% 3.43% +0.86%
3 2025-07-13 — 2.56% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4645

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2009-4645

Affected software / configurations for CVE-2009-4645

Vendor Product Version Raw CPE
accellion secure_file_transfer_appliance 7_0_135 cpe:2.3:h:accellion:secure_file_transfer_appliance:7_0_135:*:*:*:*:*:*:*
accellion secure_file_transfer_appliance 7_0_178 cpe:2.3:h:accellion:secure_file_transfer_appliance:7_0_178:*:*:*:*:*:*:*
accellion secure_file_transfer_appliance 7_0_189 cpe:2.3:h:accellion:secure_file_transfer_appliance:7_0_189:*:*:*:*:*:*:*
accellion secure_file_transfer_appliance 7_0_259 cpe:2.3:h:accellion:secure_file_transfer_appliance:7_0_259:*:*:*:*:*:*:*
accellion secure_file_transfer_appliance 7_0_296 cpe:2.3:h:accellion:secure_file_transfer_appliance:7_0_296:*:*:*:*:*:*:*

References for CVE-2009-4645

cvelogic Threat Intelligence