How severe is CVE-2018-16717?

CVE-2018-16717 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-16717 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16717?

CVE-2018-16717 affects Nih Ncbi Toolbox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16717?

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-2018-16717 published?

CVE-2018-16717 was published on 2019-05-02 and last updated on 2026-06-17.

CVE-2018-16717

CVE-2018-16717 is a critical-severity vulnerability in Nih Ncbi Toolbox with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Nih Ncbi Toolbox
Published: 2019-05-02
Last modified: 2026-06-17

Description

A heap-based buffer overflow exists in nph-viewgif.cgi in the 2.0.7 through 2.2.26 legacy versions of the NCBI ToolBox.

Frequently asked questions

What is CVE-2018-16717?: A heap-based buffer overflow exists in nph-viewgif.cgi in the 2.0.7 through 2.2.26 legacy versions of the NCBI ToolBox.
How severe is CVE-2018-16717?: CVE-2018-16717 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-16717 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16717?: CVE-2018-16717 affects Nih Ncbi Toolbox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16717?: 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-2018-16717 published?: CVE-2018-16717 was published on 2019-05-02 and last updated on 2026-06-17.

References

https://github.com/grymer/CVE/blob/master/CVE-2018-16717.md

Affected products (1)

cpe:2.3:a:nih:ncbi_toolbox:*:*:*:*:*:*:*:*

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CVE-2018-16716 — Critical (CVSS 9.1): A path traversal vulnerability exists in viewcgi.c in the 2.0.7 through 2.2.26 legacy versions of the NCBI ToolBox,…
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