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CVE-2011-4191

36
FAUCET Score

CVE-2011-4191 describes a stack-based buffer overflow in the xdrDecodeString function of XNFS.NLM within Novell NetWare 6.5 SP8. This vulnerability allows unauthenticated remote attackers to execute arbitrary code or cause a denial of service (system abend or NFS outage) by sending specially crafted, long packets. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, exploit code is publicly available on ExploitDB, indicating a high likelihood of exploitation, despite a lack of significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.5CPE matchmatch criteria
cpe:2.3:o:novell:netware:6.5:sp8:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
10.24%
Probability of exploitation in next 30 days
EPSS Percentile
95.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-18351 · Jan 10, 2012
This CVE's current EPSS score of 0.1024 is in the 92nd percentile among its peer group of 51,455 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

download.novell.com / Download
bugzilla.novell.com / show_bug.cgi
bugzilla.novell.com / show_bug.cgi