CVE-2025-69720

HIGH

GNU ncurses <6.5-20251213 - Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-69720. PoCs published by Cao-Wuhui.

AI-analyzed exploit summary This repository provides a detailed technical analysis of CVE-2025-69720, a stack buffer overflow in ncurses' infocmp tool when processing maliciously crafted terminfo entries. It includes reproduction steps, ASan outputs, and references to the official patch.

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.

Exploits (1)

nomisec WRITEUP
by Cao-Wuhui · poc
https://github.com/Cao-Wuhui/CVE-2025-69720

This repository provides a detailed technical analysis of CVE-2025-69720, a stack buffer overflow in ncurses' infocmp tool when processing maliciously crafted terminfo entries. It includes reproduction steps, ASan outputs, and references to the official patch.

Classification
Writeup 100%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: ncurses 6.4 and 6.5 (prior to patch 20251213)
No auth needed
Prerequisites: ncurses source code · clang with AddressSanitizer · crafted terminfo entry
devstral-2 · analyzed Mar 19, 2026 Full analysis →

References (7)

Core 7

Scores

CVSS v3 7.3
EPSS 0.0041
EPSS Percentile 32.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-120 CWE-121
Status published
Products (2)
GNU/ncurses < 6.5-20251213
invisible-island/ncurses 6.5 20240427 (49 CPE variants)
Published Mar 19, 2026
Tracked Since Mar 19, 2026