For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact total

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-46802 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-46802 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-46802 cve-icon
https://www.openwall.com/lists/oss-security/2025/05/12/1 cve-icon cve-icon cve-icon
History

Tue, 27 May 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 27 May 2025 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-732

Mon, 26 May 2025 15:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in Screen, allowing TTY hijacking during attachment to a multiuser session. The issue with this temporary TTY mode change is that it introduces a race condition that allows any other user in the system to open the caller's TTY for reading and writing for a small period of time. For a short time they PTY is set to mode 666, allowing any user on the system to connect to the screen session.
Title screen: TTY Hijacking while Attaching to a Multiuser Session Temporary chown() of users' TTY to mode 0666 allows PTY hijacking in screen
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

 cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

cvssV3_1

{'score': 6, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N'}

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

Type Values Removed Values Added
Description A flaw was found in Screen, allowing TTY hijacking during attachment to a multiuser session. The issue with this temporary TTY mode change is that it introduces a race condition that allows any other user in the system to open the caller's TTY for reading and writing for a small period of time.
Title screen: TTY Hijacking while Attaching to a Multiuser Session
Weaknesses CWE-362
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important
cve-icon MITRE

Status: PUBLISHED

Assigner: suse

Published: 2025-05-26T15:10:38.460Z

Updated: 2025-05-27T14:11:53.805Z

Reserved: 2025-04-30T11:28:04.727Z

Link: CVE-2025-46802

cve-icon Vulnrichment

Updated: 2025-05-27T14:11:11.940Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-05-26T16:15:20.557

Modified: 2025-05-28T15:01:30.720

Link: CVE-2025-46802

cve-icon Redhat

Severity : Important

Publid Date: 2025-05-13T16:42:22Z

Links: CVE-2025-46802 - Bugzilla