How severe is CVE-2011-4311?

CVE-2011-4311 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-4311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4311?

CVE-2011-4311 primarily affects Montala Resourcespace. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4311 published?

CVE-2011-4311 was published on 2011-11-19 and last updated on 2026-06-16.

CVE-2011-4311

CVE-2011-4311 is a medium-severity vulnerability in Montala Resourcespace with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Montala Resourcespace
Published: 2011-11-19
Last modified: 2026-06-16

Description

ResourceSpace before 4.2.2833 does not properly validate access keys, which allows remote attackers to bypass intended resource restrictions via unspecified vectors.

Frequently asked questions

What is CVE-2011-4311?: ResourceSpace before 4.2.2833 does not properly validate access keys, which allows remote attackers to bypass intended resource restrictions via unspecified vectors.
How severe is CVE-2011-4311?: CVE-2011-4311 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-4311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4311?: CVE-2011-4311 primarily affects Montala Resourcespace. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4311 published?: CVE-2011-4311 was published on 2011-11-19 and last updated on 2026-06-16.

References

Affected products (15)

cpe:2.3:a:montala:resourcespace:*:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:2.2.1240:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:2.3.1374:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.0.1490:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.1.1557:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.2.1651:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.3.1723:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.4.1794:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.5.1857:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.6.2022:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.7.2088:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.8.2144:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:3.9.2269:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:4.0.2429:*:*:*:*:*:*:*
cpe:2.3:a:montala:resourcespace:4.1.2567:*:*:*:*:*:*:*

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