CVE-2011-0321

librpc.dll in nsrexecd in EMC NetWorker before 7.5 SP4, 7.5.3.x before 7.5.3.5, and 7.6.x before 7.6.1.2 does not properly mitigate the possibility of a spoofed localhost source IP address, which allows remote attackers to (1) register or (2) unregister RPC services, and consequently cause a denial of service or obtain sensitive information from interprocess communication, via crafted UDP packets containing service commands.

Published: 2011-02-01 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-0321 is rated Moderate Risk (55.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.60%). 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-2011-0321

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 2026-06-15 1.65% 2.60% +0.96%
2 2026-03-02 1.35% 1.65% +0.30%
3 2025-03-30 — 1.35% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-0321

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P 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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2011-0321

Affected software / configurations for CVE-2011-0321

Vendor Product Version Raw CPE
emc networker <= 7.5 cpe:2.3:a:emc:networker:*:sp3:*:*:*:*:*:*
emc networker 6.0 cpe:2.3:a:emc:networker:6.0:*:*:*:*:*:*:*
emc networker 6.1 cpe:2.3:a:emc:networker:6.1:*:*:*:*:*:*:*
emc networker 7.0 cpe:2.3:a:emc:networker:7.0:*:*:*:*:*:*:*
emc networker 7.2 cpe:2.3:a:emc:networker:7.2:*:*:*:*:*:*:*
emc networker 7.3 cpe:2.3:a:emc:networker:7.3:*:*:*:*:*:*:*
emc networker 7.4 cpe:2.3:a:emc:networker:7.4:*:*:*:*:*:*:*
emc networker 7.4 cpe:2.3:a:emc:networker:7.4:sp1:*:*:*:*:*:*
emc networker 7.4 cpe:2.3:a:emc:networker:7.4:sp2:*:*:*:*:*:*
emc networker 7.4 cpe:2.3:a:emc:networker:7.4:sp3:*:*:*:*:*:*
emc networker 7.4 cpe:2.3:a:emc:networker:7.4:sp4:*:*:*:*:*:*
emc networker 7.4 cpe:2.3:a:emc:networker:7.4:sp5:*:*:*:*:*:*
emc networker 7.5 cpe:2.3:a:emc:networker:7.5:*:*:*:*:*:*:*
emc networker 7.5 cpe:2.3:a:emc:networker:7.5:sp1:*:*:*:*:*:*
emc networker 7.5 cpe:2.3:a:emc:networker:7.5:sp2:*:*:*:*:*:*
emc networker 7.5.3.1 cpe:2.3:a:emc:networker:7.5.3.1:*:*:*:*:*:*:*
emc networker 7.5.3.2 cpe:2.3:a:emc:networker:7.5.3.2:*:*:*:*:*:*:*
emc networker 7.5.3.3 cpe:2.3:a:emc:networker:7.5.3.3:*:*:*:*:*:*:*
emc networker 7.5.3.4 cpe:2.3:a:emc:networker:7.5.3.4:*:*:*:*:*:*:*
emc networker 7.6.0.2 cpe:2.3:a:emc:networker:7.6.0.2:*:*:*:*:*:*:*
emc networker 7.6.0.3 cpe:2.3:a:emc:networker:7.6.0.3:*:*:*:*:*:*:*
emc networker 7.6.0.4 cpe:2.3:a:emc:networker:7.6.0.4:*:*:*:*:*:*:*
emc networker 7.6.0.5 cpe:2.3:a:emc:networker:7.6.0.5:*:*:*:*:*:*:*
emc networker 7.6.0.6 cpe:2.3:a:emc:networker:7.6.0.6:*:*:*:*:*:*:*
emc networker 7.6.0.7 cpe:2.3:a:emc:networker:7.6.0.7:*:*:*:*:*:*:*
emc networker 7.6.0.8 cpe:2.3:a:emc:networker:7.6.0.8:*:*:*:*:*:*:*
emc networker 7.6.0.9 cpe:2.3:a:emc:networker:7.6.0.9:*:*:*:*:*:*:*
emc networker 7.6.1.1 cpe:2.3:a:emc:networker:7.6.1.1:*:*:*:*:*:*:*

References for CVE-2011-0321

cvelogic Threat Intelligence