OCTOBER 2, 2026
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Case File

CVE-2021-26937

CRITICAL · CVSS 9.8 EPSS 9.15%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-09 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2021-26937
Severity
CRITICAL
CVSS
9.8
EPSS
9.15%

Original NVD Description

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

Related CVEs

Other vulnerabilities affecting the same vendor(s)