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CVE-2011-2663

30
FAUCET Score

CVE-2011-2663 describes an array index error in the GroupWise Internet Agent (GWIA) component of Novell GroupWise 8.0 prior to HP3. This critical vulnerability allows unauthenticated remote attackers to execute arbitrary code by sending a specially crafted yearly RRULE variable within a VCALENDAR attachment in an email. With a CVSS score of 10.0, it represents a complete compromise of confidentiality, integrity, and availability, requiring no user interaction. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:a:novell:groupwise:8.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:novell:groupwise:8.0:hp1:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:a:novell:groupwise:8.0:hp2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
5.39%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0539 is in the 86th percentile among its peer group of 51,485 CVEs.

Social Chatter

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

bugzilla.novell.com / show_bug.cgi
labs.idefense.com / verisign/intelligence/2009/vulnerabilities/display.php
novell.com / support/viewContent.do
Vendor Advisory
securityfocus.com / archive/1/519875/100/0/threaded