# ncurses exposes uninitialized memory in string reading functions

Source: https://junglewise.ai/threats/ncurses-exposes-uninitialized-memory-in-string-reading-functions-9ccafd62  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-10-22  
License: CC BY 4.0 with a link back

Severity: medium · CVSS 4 · Published 2025-10-22

ncurses exposes uninitialized memory in string reading functions

Technologies: [ncurses (crates.io)](https://junglewise.ai/threats/technologies/crates-io-ncurses). Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Medium severity, with a CVSS score of 4, published 22 October 2025.

**Which products and versions are affected?** ncurses (crates.io) SEMVER:introduced=0,last_affected=6.0.1.

**Is there a fix for This vulnerability?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected?** Check whether you run ncurses (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- ncurses (crates.io) SEMVER:introduced=0,last_affected=6.0.1

## Related threats

- [RUSTSEC-2025-0108 - Uninitialized memory exposure in string reading functions](https://junglewise.ai/threats/rustsec-2025-0108-uninitialized-memory-exposure-in-string-reading-5d930c60)
- [RUSTSEC-2019-0006 - Buffer overflow and format vulnerabilities in functions exposed without unsafe](https://junglewise.ai/threats/cve-2019-15547-mishandling-of-format-strings-in-ncurses)