How severe is CVE-2016-0304?

CVE-2016-0304 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-0304 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-0304?

CVE-2016-0304 primarily affects Ibm Domino. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-0304?

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

When was CVE-2016-0304 published?

CVE-2016-0304 was published on 2016-06-29 and last updated on 2026-06-17.

CVE-2016-0304

CVE-2016-0304 is a high-severity vulnerability in Ibm Domino with a CVSS 3.x base score of 8.1. 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-284.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Ibm Domino
Published: 2016-06-29
Last modified: 2026-06-17

Description

The Java Console in IBM Domino 8.5.x before 8.5.3 FP6 IF13 and 9.x before 9.0.1 FP6, when a certain unsupported configuration involving UNC share pathnames is used, allows remote attackers to bypass authentication and possibly execute arbitrary code via unspecified vectors, aka SPR KLYHA7MM3J. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-0920.

Frequently asked questions

What is CVE-2016-0304?: The Java Console in IBM Domino 8.5.x before 8.5.3 FP6 IF13 and 9.x before 9.0.1 FP6, when a certain unsupported configuration involving UNC share pathnames is used, allows remote attackers to bypass authentication and possibly execute arbitrary code via unspecified vectors, aka SPR KLYHA7MM3J. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-0920.
How severe is CVE-2016-0304?: CVE-2016-0304 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-0304 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-0304?: CVE-2016-0304 primarily affects Ibm Domino. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-0304?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-0304 published?: CVE-2016-0304 was published on 2016-06-29 and last updated on 2026-06-17.

References

http://www-01.ibm.com/support/docview.wss?uid=swg21983328

Affected products (25)

cpe:2.3:a:ibm:domino:8.5.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.3.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.3.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.3.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.3.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.3.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.2.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.2.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.1.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.1.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.1.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:8.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:9.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:9.0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:9.0.1.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:9.0.1.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:9.0.1.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:domino:9.0.1.5:*:*:*:*:*:*:*

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