How severe is CVE-2017-10684?

CVE-2017-10684 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-2017-10684 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-2017-10684?

CVE-2017-10684 affects Gnu Ncurses. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-10684?

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-2017-10684 published?

CVE-2017-10684 was published on 2017-06-29 and last updated on 2026-06-17.

CVE-2017-10684

CVE-2017-10684 is a critical-severity vulnerability in Gnu Ncurses 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Gnu Ncurses
Published: 2017-06-29
Last modified: 2026-06-17

Description

In ncurses 6.0, there is a stack-based buffer overflow in the fmt_entry function. A crafted input will lead to a remote arbitrary code execution attack.

Frequently asked questions

What is CVE-2017-10684?: In ncurses 6.0, there is a stack-based buffer overflow in the fmt_entry function. A crafted input will lead to a remote arbitrary code execution attack.
How severe is CVE-2017-10684?: CVE-2017-10684 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-2017-10684 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-2017-10684?: CVE-2017-10684 affects Gnu Ncurses. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-10684?: 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-2017-10684 published?: CVE-2017-10684 was published on 2017-06-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:ncurses:6.0:*:*:*:*:*:*:*

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