CVSS 3.1
6.8 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:HCVE-2026-6390
Medium (6.8). EPSS 0.2% chance of exploitation in the next 30 days.
A flaw was found in GNU nano's multi-buffer error message handling. When a user opens multiple files at startup and one triggers an ALERT-level error, a specially crafted filename containing printf format specifiers can be reinterpreted. This format string vulnerability may allow an attacker to achieve stack information disclosure, cause a denial of service (crash), or potentially perform arbitrary memory writes.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-31)
- CWE
- CWE-134
- Published
- Modified
- Record from
- the NVD, synced