How severe is CVE-2011-0915?

CVE-2011-0915 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2011-0915 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0915?

CVE-2011-0915 primarily affects Ibm Lotus Domino. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-0915?

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-2011-0915 published?

CVE-2011-0915 was published on 2011-02-08 and last updated on 2026-06-16.

CVE-2011-0915

CVE-2011-0915 is a critical-severity vulnerability in Ibm Lotus Domino with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 12% places it in the 96th 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: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Ibm Lotus Domino
Published: 2011-02-08
Last modified: 2026-06-16

Description

Stack-based buffer overflow in nrouter.exe in IBM Lotus Domino before 8.5.3 allows remote attackers to execute arbitrary code via a long name parameter in a Content-Type header in a malformed Notes calendar (aka iCalendar or iCal) meeting request, aka SPR KLYH87LL23.

Frequently asked questions

What is CVE-2011-0915?: Stack-based buffer overflow in nrouter.exe in IBM Lotus Domino before 8.5.3 allows remote attackers to execute arbitrary code via a long name parameter in a Content-Type header in a malformed Notes calendar (aka iCalendar or iCal) meeting request, aka SPR KLYH87LL23.
How severe is CVE-2011-0915?: CVE-2011-0915 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-0915 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0915?: CVE-2011-0915 primarily affects Ibm Lotus Domino. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-0915?: 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-2011-0915 published?: CVE-2011-0915 was published on 2011-02-08 and last updated on 2026-06-16.

References

Affected products (74)

cpe:2.3:a:ibm:lotus_domino:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:4.6.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:4.6.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:4.6.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.4a:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.6a:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.7:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.7a:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.8:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.8a:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.9:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.9a:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.10:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:5.0.11:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.1.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.1.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.2_cf2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.0.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.5.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.5.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:lotus_domino:6.5.3.1:*:*:*:*:*:*:*

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