CVE-2002-1955

Iomega NAS A300U uses cleartext LANMAN authentication when mounting CIFS/SMB drives, which allows remote attackers to perform a man-in-the-middle attack.

Published: 2002-12-31 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2002-1955 is rated Moderate Risk (45.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.75%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2002-1955

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 2026-05-23 0.91% 0.75% -0.16%
2 2025-08-14 0.55% 0.91% +0.36%
3 2025-03-30 — 0.55% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2002-1955

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2002-1955

Affected software / configurations for CVE-2002-1955

Vendor Product Version Raw CPE
iomega nas a300u cpe:2.3:h:iomega:nas:a300u:*:*:*:*:*:*:*

References for CVE-2002-1955

cvelogic Threat Intelligence