CVE-2007-1821

Sprint Nextel Sprint voice mail systems allow remote attackers to retrieve or remove messages, or reconfigure mailboxes, by spoofing Calling Number Identification (CNID, aka Caller ID).

Published: 2007-04-02 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-1821 is rated High Risk (67.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.49%). High exploitation likelihood—assess exposure and prioritize 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-2007-1821

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 2025-11-19 1.43% 1.49% +0.06%
2 2025-08-31 0.99% 1.43% +0.43%
3 2025-03-30 — 0.99% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-1821

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2007-1821

Affected software / configurations for CVE-2007-1821

Vendor Product Version Raw CPE
sprint sprint_voice — cpe:2.3:a:sprint:sprint_voice:*:*:*:*:*:*:*:*

References for CVE-2007-1821

cvelogic Threat Intelligence