GNU ncurses 6.4/6.5 progs/infocmp.c analyze_string buffer overflow

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.5 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in GNU ncurses 6.4/6.5. The impacted element is the function analyze_string of the file progs/infocmp.c. This manipulation causes buffer overflow.
This vulnerability is handled as CVE-2025-69720. There is not any exploit available.
Details
A vulnerability classified as critical was found in GNU ncurses 6.4/6.5. Affected by this vulnerability is the function analyze_string of the file progs/infocmp.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
The infocmp command-line tool in ncurses before 6.5-20251213 has a stack-based buffer overflow in analyze_string in progs/infocmp.c.
The advisory is shared at marc.info. This vulnerability is known as CVE-2025-69720 since 01/09/2026. The exploitation appears to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/24/2026).
The vulnerability scanner Nessus provides a plugin with the ID 303220 (Linux Distros Unpatched Vulnerability : CVE-2025-69720), which helps to determine the existence of the flaw in a target environment.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the databases at Tenable (303220) and CERT Bund (WID-SEC-2026-0875). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Affected
- Red Hat Enterprise Linux
- SUSE Linux
- Oracle Linux
- RESF Rocky Linux
- IBM MQ
Product
Vendor
Name
Version
License
Website
- Vendor: https://www.gnu.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.6VulDB Meta Temp Score: 7.6
VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔒
CNA Base Score: 7.3
CNA Vector (MITRE): 🔒
ADP CISA Base Score: 9.8
ADP CISA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: Partially
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 303220
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-69720
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
01/09/2026 CVE reserved03/19/2026 Advisory disclosed
03/19/2026 VulDB entry created
06/24/2026 VulDB entry last update
Sources
Vendor: gnu.orgAdvisory: marc.info
Status: Not defined
CVE: CVE-2025-69720 (🔒)
GCVE (CVE): GCVE-0-2025-69720
GCVE (VulDB): GCVE-100-351721
CERT Bund: WID-SEC-2026-0875 - Red Hat Enterprise Linux (ncurses): Schwachstelle ermöglicht Codeausführung
Entry
Created: 03/19/2026 17:24Updated: 06/24/2026 11:40
Changes: 03/19/2026 17:24 (54), 03/23/2026 04:21 (2), 03/24/2026 00:48 (1), 03/24/2026 04:32 (11), 03/26/2026 17:58 (12), 03/26/2026 21:02 (9), 04/21/2026 14:39 (7), 06/24/2026 11:40 (1)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
No comments yet. Languages: en.
Please log in to comment.