How severe is CVE-2018-19217?

CVE-2018-19217 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-19217 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19217?

CVE-2018-19217 affects Gnu Ncurses. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19217?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-19217 published?

CVE-2018-19217 was published on 2018-11-12 and last updated on 2026-06-17.

CVE-2018-19217

CVE-2018-19217 is a medium-severity vulnerability in Gnu Ncurses with a CVSS 3.x base score of 6.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Gnu Ncurses
Published: 2018-11-12
Last modified: 2026-06-17

Description

In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party

Frequently asked questions

What is CVE-2018-19217?: In ncurses, possibly a 6.x version, there is a NULL pointer dereference at the function _nc_name_match that will lead to a denial of service attack. NOTE: the original report stated version 6.1, but the issue did not reproduce for that version according to the maintainer or a reliable third-party
How severe is CVE-2018-19217?: CVE-2018-19217 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-19217 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19217?: CVE-2018-19217 affects Gnu Ncurses. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19217?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-19217 published?: CVE-2018-19217 was published on 2018-11-12 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1643753

Affected products (1)

cpe:2.3:a:gnu:ncurses:6.1:*:*:*:*:*:*:*

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