How severe is CVE-2016-10363?

CVE-2016-10363 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-10363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10363?

CVE-2016-10363 affects Elastic Logstash. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-10363?

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-2016-10363 published?

CVE-2016-10363 was published on 2017-06-16 and last updated on 2026-06-17.

CVE-2016-10363

CVE-2016-10363 is a high-severity vulnerability in Elastic Logstash with a CVSS 3.x base score of 7.5. 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-404.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-404
Affected product: Elastic Logstash
Published: 2017-06-16
Last modified: 2026-06-17

Description

Logstash versions prior to 2.3.3, when using the Netflow Codec plugin, a remote attacker crafting malicious Netflow v5, Netflow v9 or IPFIX packets could perform a denial of service attack on the Logstash instance. The errors resulting from these crafted inputs are not handled by the codec and can cause the Logstash process to exit.

Frequently asked questions

What is CVE-2016-10363?: Logstash versions prior to 2.3.3, when using the Netflow Codec plugin, a remote attacker crafting malicious Netflow v5, Netflow v9 or IPFIX packets could perform a denial of service attack on the Logstash instance. The errors resulting from these crafted inputs are not handled by the codec and can cause the Logstash process to exit.
How severe is CVE-2016-10363?: CVE-2016-10363 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-10363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10363?: CVE-2016-10363 affects Elastic Logstash. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-10363?: 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-2016-10363 published?: CVE-2016-10363 was published on 2017-06-16 and last updated on 2026-06-17.

References

https://www.elastic.co/community/security

Affected products (1)

cpe:2.3:a:elastic:logstash:*:*:*:*:*:*:*:*

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