CVE-2025-69720
"ncurses Buffer Overflow Vulnerability"
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.
INFO
Published Date :
March 19, 2026, 3:16 p.m.
Last Modified :
March 26, 2026, 7:35 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update ncurses to the latest secure version.
- Apply vendor patches for ncurses v6.5 and v6.4.
- Recompile applications linked against vulnerable ncurses.
- Monitor for security advisories from the ncurses project.
Public PoC/Exploit Available at Github
CVE-2025-69720 has a 4 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-69720.
| URL | Resource |
|---|---|
| https://github.com/Cao-Wuhui/CVE-2025-69720 | Exploit Third Party Advisory |
| https://invisible-island.net/archives/ncurses/6.5/ | Release Notes |
| https://invisible-island.net/ncurses/ | Product |
| https://marc.info/?l=ncurses-bug&m=176539968328570&w=2 | Issue Tracking Mailing List Vendor Advisory |
| https://marc.info/?l=ncurses-bug&m=176540731801330&w=2 | Issue Tracking Mailing List Vendor Advisory |
| https://marc.info/?l=ncurses-bug&m=176545557728083&w=2 | Issue Tracking Mailing List Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-69720 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-69720
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Advisory for CVE-2025-69720: stack-based buffer overflow in GNU ncurses infocmp (CWE-121)
buffer-overflow cve ncurses security stack-buffer-overflow vulnerability cwe-121
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-69720 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-69720 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:invisible-island:ncurses:*:*:*:*:*:*:*:* versions up to (including) 6.4 *cpe:2.3:a:invisible-island:ncurses:6.5:20240427:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240504:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240511:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240518:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240519:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240525:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240601:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240608:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240615:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240622:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240629:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240706:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240713:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240720:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240727:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240810:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240817:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240824:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240831:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240914:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240922:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20240928:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241006:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241019:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241026:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241102:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241109:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241123:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241130:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241207:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241214:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241221:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20241228:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250104:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250111:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250118:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250125:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250201:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250208:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250215:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250216:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250222:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250301:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250308:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250315:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250322:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250329:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250405:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250412:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250419:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250426:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250503:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250510:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250517:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250524:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250531:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250614:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250621:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250628:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250705:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250712:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250720:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250726:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250802:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250809:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250816:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250823:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250830:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250913:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250920:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20250927:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251004:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251010:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251018:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251025:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251101:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251115:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251122:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251123:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251129:*:*:*:*:*:* *cpe:2.3:a:invisible-island:ncurses:6.5:20251206:*:*:*:*:*:* Added Reference Type MITRE: https://github.com/Cao-Wuhui/CVE-2025-69720 Types: Exploit, Third Party Advisory Added Reference Type MITRE: https://invisible-island.net/archives/ncurses/6.5/ Types: Release Notes Added Reference Type MITRE: https://invisible-island.net/ncurses/ Types: Product Added Reference Type MITRE: https://marc.info/?l=ncurses-bug&m=176539968328570&w=2 Types: Issue Tracking, Mailing List, Vendor Advisory Added Reference Type MITRE: https://marc.info/?l=ncurses-bug&m=176540731801330&w=2 Types: Issue Tracking, Mailing List, Vendor Advisory Added Reference Type MITRE: https://marc.info/?l=ncurses-bug&m=176545557728083&w=2 Types: Issue Tracking, Mailing List, Vendor Advisory -
CVE Modified by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Changed Description ncurses v6.5 and v6.4 are vulnerable to Buffer Overflow in progs/infocmp.c, function analyze_string(). The infocmp command-line tool in ncurses before 6.5-20251213 has a stack-based buffer overflow in analyze_string in progs/infocmp.c. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L Added CWE CWE-121 Added Reference https://invisible-island.net/archives/ncurses/6.5/ Added Reference https://invisible-island.net/ncurses/ -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-120 -
New CVE Received by [email protected]
Mar. 19, 2026
Action Type Old Value New Value Added Description ncurses v6.5 and v6.4 are vulnerable to Buffer Overflow in progs/infocmp.c, function analyze_string(). Added Reference https://github.com/Cao-Wuhui/CVE-2025-69720 Added Reference https://marc.info/?l=ncurses-bug&m=176539968328570&w=2 Added Reference https://marc.info/?l=ncurses-bug&m=176540731801330&w=2 Added Reference https://marc.info/?l=ncurses-bug&m=176545557728083&w=2