How severe is CVE-2016-9177?

CVE-2016-9177 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 high, integrity none, and availability none.

Is CVE-2016-9177 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9177?

CVE-2016-9177 affects Sparkjava Spark. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-9177?

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-2016-9177 published?

CVE-2016-9177 was published on 2016-11-04 and last updated on 2026-06-17.

CVE-2016-9177

CVE-2016-9177 is a high-severity vulnerability in Sparkjava Spark 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Sparkjava Spark
Published: 2016-11-04
Last modified: 2026-06-17

Description

Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.

Frequently asked questions

What is CVE-2016-9177?: Directory traversal vulnerability in Spark 2.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the URI.
How severe is CVE-2016-9177?: CVE-2016-9177 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 high, integrity none, and availability none.
Is CVE-2016-9177 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9177?: CVE-2016-9177 affects Sparkjava Spark. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-9177?: 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-2016-9177 published?: CVE-2016-9177 was published on 2016-11-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sparkjava:spark:*:*:*:*:*:*:*:*

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