How severe is CVE-2019-15548?

CVE-2019-15548 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-2019-15548 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-2019-15548?

CVE-2019-15548 affects Ncurses Project Ncurses. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15548?

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-2019-15548 published?

CVE-2019-15548 was published on 2019-08-26 and last updated on 2026-06-17.

CVE-2019-15548

CVE-2019-15548 is a critical-severity vulnerability in Ncurses Project 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: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
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 instr and mvwinstr buffer overflows because interaction with C functions is mishandled.

Frequently asked questions

What is CVE-2019-15548?: An issue was discovered in the ncurses crate through 5.99.0 for Rust. There are instr and mvwinstr buffer overflows because interaction with C functions is mishandled.
How severe is CVE-2019-15548?: CVE-2019-15548 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-2019-15548 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-2019-15548?: CVE-2019-15548 affects Ncurses Project Ncurses. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15548?: 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-2019-15548 published?: CVE-2019-15548 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:*:*:*:*:*:*:*:*

More vulnerabilities in Ncurses Project Ncurses

CVE-2019-15547 — High (CVSS 7.5): An issue was discovered in the ncurses crate through 5.99.0 for Rust. There are format string issues in printw…

All CVEs affecting Ncurses Project Ncurses →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →