How severe is CVE-2019-15547?

CVE-2019-15547 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 none, integrity high, and availability none.

Is CVE-2019-15547 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15547?

CVE-2019-15547 affects Ncurses Project Ncurses. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15547?

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-2019-15547 published?

CVE-2019-15547 was published on 2019-08-26 and last updated on 2026-06-17.

CVE-2019-15547

CVE-2019-15547 is a high-severity vulnerability in Ncurses Project Ncurses 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-134.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.4
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-134
Affected product: Ncurses Project Ncurses
Published: 2019-08-26
Last modified: 2026-06-17

Description

An issue was discovered in the ncurses crate through 5.99.0 for Rust. There are format string issues in printw functions because C format arguments are mishandled.

Frequently asked questions

What is CVE-2019-15547?: An issue was discovered in the ncurses crate through 5.99.0 for Rust. There are format string issues in printw functions because C format arguments are mishandled.
How severe is CVE-2019-15547?: CVE-2019-15547 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 none, integrity high, and availability none.
Is CVE-2019-15547 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15547?: CVE-2019-15547 affects Ncurses Project Ncurses. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15547?: 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-2019-15547 published?: CVE-2019-15547 was published on 2019-08-26 and last updated on 2026-06-17.

References

https://rustsec.org/advisories/RUSTSEC-2019-0006.html

Affected products (1)

cpe:2.3:a:ncurses_project:ncurses:*:*:*:*:*:*:*:*

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