VDB-231823 · CVE-2023-35846 · EUVD-2023-39839

VirtualSquare picoTCP/picoTCP-NG up to 2.1 Transport Layer Frame privilege escalation

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in VirtualSquare picoTCP and picoTCP-NG up to 2.1. This impacts an unknown function of the component Transport Layer Frame Handler. This manipulation causes an unknown weakness. This vulnerability appears as CVE-2023-35846. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic was found in VirtualSquare picoTCP and picoTCP-NG up to 2.1. Affected by this vulnerability is an unknown code of the component Transport Layer Frame Handler. The impact remains unknown. The summary by CVE is:

VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not check the transport layer length in a frame before performing port filtering.

The weakness was presented 06/19/2023 as d561990a358899178115e156871cc054a1c55ffe. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-35846 since 06/19/2023. The technical details are unknown and an exploit is not publicly available.

Applying the patch d561990a358899178115e156871cc054a1c55ffe is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-39839). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

VirtualSquare

Name

Version

License

open-source

Website

Product: https://github.com/virtualsquare/picotcp/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
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: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: d561990a358899178115e156871cc054a1c55ffe

Timelineinfo

06/19/2023 🔍
06/19/2023 +0 days 🔍
06/19/2023 +0 days 🔍
01/11/2026 +937 days 🔍

Sourcesinfo

Product: github.com

Advisory: d561990a358899178115e156871cc054a1c55ffe
Status: Confirmed

CVE: CVE-2023-35846 (🔍)
GCVE (CVE): GCVE-0-2023-35846
GCVE (VulDB): GCVE-100-231823
EUVD: 🔍

Entryinfo

Created: 06/19/2023 06:58
Updated: 01/11/2026 11:11
Changes: 06/19/2023 06:58 (40), 07/15/2023 08:05 (11), 12/12/2024 02:30 (26), 01/11/2026 11:11 (1)
Complete: 🔍
Cache ID: 216::103