Buffer overflow in GNU Ncurses
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.004 (36.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- GNU Ncurses — versions 0
- Invisible-Island Ncurses — versions 6.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- marc.info/ (Mailing List, Issue Tracking, Vendor Advisory)
- marc.info/ (Mailing List, Issue Tracking, Vendor Advisory)
- marc.info/ (Mailing List, Issue Tracking, Vendor Advisory)
- github.com/Cao-Wuhui/CVE-2025-69720 (Exploit, Third Party Advisory)
- invisible-island.net/archives/ncurses/6.5/ (Release Notes)
- invisible-island.net/ncurses/ (Product)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2025-69720?
- CVE-2025-69720 is a high-severity vulnerability in GNU Ncurses, classified under Stack-based Buffer Overflow. CVSS score: 7.3/10. Published 2026-03-19.
- How severe is CVE-2025-69720?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-69720 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.