A flaw was found in Screen. The default mode for pseudo-terminals (PTYs) allocated by Screen was changed from 0620 to 0622. This vulnerability allows public writes to any PTYs in the system.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://nvd.nist.gov/vuln/detail/CVE-2025-46803 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-46803 cve-icon
History

Wed, 14 May 2025 02:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in Screen. The default mode for pseudo-terminals (PTYs) allocated by Screen was changed from 0620 to 0622. This vulnerability allows public writes to any PTYs in the system.
Title screen: Screen by Default Creates World Writable PTYs
Weaknesses CWE-282
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

threat_severity

Important
cve-icon MITRE

No data.

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Important

Publid Date: 2025-05-13T16:41:25Z

Links: CVE-2025-46803 - Bugzilla