How severe is CVE-2016-1000344?

CVE-2016-1000344 has a CVSS 3.x base score of 7.4, 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 none.

Is CVE-2016-1000344 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1000344?

CVE-2016-1000344 affects Bouncycastle Bc-java. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-1000344?

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-2016-1000344 published?

CVE-2016-1000344 was published on 2018-06-04 and last updated on 2026-06-17.

CVE-2016-1000344

CVE-2016-1000344 is a high-severity vulnerability in Bouncycastle Bc-java with a CVSS 3.x base score of 7.4. 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-310.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Bouncycastle Bc-java
Published: 2018-06-04
Last modified: 2026-06-17

Description

In the Bouncy Castle JCE Provider version 1.55 and earlier the DHIES implementation allowed the use of ECB mode. This mode is regarded as unsafe and support for it has been removed from the provider.

Frequently asked questions

What is CVE-2016-1000344?: In the Bouncy Castle JCE Provider version 1.55 and earlier the DHIES implementation allowed the use of ECB mode. This mode is regarded as unsafe and support for it has been removed from the provider.
How severe is CVE-2016-1000344?: CVE-2016-1000344 has a CVSS 3.x base score of 7.4, 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 none.
Is CVE-2016-1000344 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1000344?: CVE-2016-1000344 affects Bouncycastle Bc-java. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-1000344?: 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-2016-1000344 published?: CVE-2016-1000344 was published on 2018-06-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bouncycastle:bc-java:*:*:*:*:*:*:*:*

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