P4Verified

CVE-2021-39537: ncurses through 6.2.1 (inclusive); +3 more affected products

CVE-2021-39537. CVSS 3.1 base score 8.8 (HIGH, NVD). EPSS 0.03231 (percentile 0.87888), scored 2026-10-08.

Affected technology

ncurses · through 6.2.1 (inclusive)
invisible-island

mac os x · 10.12.6
apple

macos · 11.7
apple

macos · 13.0
apple

n/a · n/a
Vendor not specified by the source

Description’s affected range: through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-09 03:15:25.266854+00:00

CWE: CWE-787
CCR priority: 36.0 /100 (P4)
CVSS 3.1: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · NVD
EPSS: 0.03231 · percentile 0.87888 · 2026-10-08
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-09 03:13:32.966430+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2021-39537.html