VDB-308885 · CVE-2025-46802 · Nessus 238263

GNU screen Multiuser Session Attach multiattach user session

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in GNU screen and classified as problematic. Impacted is the function Attach of the component Multiuser Session Handler. The manipulation of the argument multiattach leads to user session. This vulnerability is referenced as CVE-2025-46802. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in GNU screen (the affected version unknown) and classified as problematic. This issue affects the function Attach of the component Multiuser Session Handler. The manipulation of the argument multiattach with an unknown input leads to a user session vulnerability. Using CWE to declare the problem leads to CWE-1018. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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

The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2025-46802 since 04/30/2025. The exploitation is known to be easy. An attack has to be approached locally. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 238263 (Amazon Linux 2023 : screen (ALAS2023-2025-1006)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (238263) and CERT Bund (WID-SEC-2025-1850). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

Xerox FreeFlow Print Server

Productinfo

Vendor

Name

screen

License

open-source

Website

Vendor: https://www.gnu.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.0
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: User session
CWE: CWE-1018
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 238263
Nessus Name: Amazon Linux 2023 : screen (ALAS2023-2025-1006)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/30/2025 🔍
05/14/2025 +14 days 🔍
05/14/2025 +0 days 🔍
08/16/2025 +94 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2025-46802 (🔍)
GCVE (CVE): GCVE-0-2025-46802
GCVE (VulDB): GCVE-100-308885
CERT Bund: WID-SEC-2025-1850 - Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Entryinfo

Created: 05/14/2025 08:40
Updated: 08/16/2025 11:43
Changes: 05/14/2025 08:40 (50), 05/14/2025 08:42 (1), 05/26/2025 18:37 (24), 06/12/2025 16:24 (2), 08/16/2025 11:43 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.