How severe is CVE-2010-4227?

CVE-2010-4227 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2010-4227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4227?

CVE-2010-4227 primarily affects Novell Netware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4227?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2010-4227 published?

CVE-2010-4227 was published on 2011-02-25 and last updated on 2026-06-16.

CVE-2010-4227

CVE-2010-4227 is a critical-severity vulnerability in Novell Netware with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Novell Netware
Published: 2011-02-25
Last modified: 2026-06-16

Description

The xdrDecodeString function in XNFS.NLM in Novell Netware 6.5 before SP8 allows remote attackers to cause a denial of service (abend) or execute arbitrary code via a crafted, signed value in a NFS RPC request to port UDP 1234, leading to a stack-based buffer overflow.

Frequently asked questions

What is CVE-2010-4227?: The xdrDecodeString function in XNFS.NLM in Novell Netware 6.5 before SP8 allows remote attackers to cause a denial of service (abend) or execute arbitrary code via a crafted, signed value in a NFS RPC request to port UDP 1234, leading to a stack-based buffer overflow.
How severe is CVE-2010-4227?: CVE-2010-4227 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2010-4227 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4227?: CVE-2010-4227 primarily affects Novell Netware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4227?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2010-4227 published?: CVE-2010-4227 was published on 2011-02-25 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:novell:netware:*:sp7:*:*:*:*:*:*
cpe:2.3:a:novell:netware:6.5:*:*:*:*:*:*:*
cpe:2.3:a:novell:netware:6.5:sp1:*:*:*:*:*:*
cpe:2.3:a:novell:netware:6.5:sp2:*:*:*:*:*:*
cpe:2.3:a:novell:netware:6.5:sp3:*:*:*:*:*:*
cpe:2.3:a:novell:netware:6.5:sp4:*:*:*:*:*:*
cpe:2.3:a:novell:netware:6.5:sp5:*:*:*:*:*:*
cpe:2.3:a:novell:netware:6.5:sp6:*:*:*:*:*:*

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