How severe is CVE-2017-13730?

CVE-2017-13730 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-2017-13730 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-13730?

CVE-2017-13730 affects Invisible-island Ncurses. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-13730?

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

When was CVE-2017-13730 published?

CVE-2017-13730 was published on 2017-08-29 and last updated on 2026-07-23.

CVE-2017-13730

CVE-2017-13730 is a medium-severity vulnerability in Invisible-island 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Invisible-island Ncurses
Published: 2017-08-29
Last modified: 2026-07-23

Description

There is an illegal address access in the function _nc_read_entry_source() in progs/tic.c in ncurses 6.0 that might lead to a remote denial of service attack.

Frequently asked questions

What is CVE-2017-13730?: There is an illegal address access in the function _nc_read_entry_source() in progs/tic.c in ncurses 6.0 that might lead to a remote denial of service attack.
How severe is CVE-2017-13730?: CVE-2017-13730 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-2017-13730 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-13730?: CVE-2017-13730 affects Invisible-island Ncurses. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-13730?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-13730 published?: CVE-2017-13730 was published on 2017-08-29 and last updated on 2026-07-23.

References

Affected products (1)

cpe:2.3:a:invisible-island:ncurses:6.0:*:*:*:*:*:*:*

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