VDB-170850 · CVE-2021-26788 · GCVE-0-2021-26788

Oryx Embedded CycloneTCP up to 2.0.0 TCP Packet denial of service

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 categorized as problematic has been discovered in Oryx Embedded CycloneTCP up to 2.0.0. This impacts an unknown function of the component TCP Packet Handler. The manipulation results in denial of service. This vulnerability is known as CVE-2021-26788. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Oryx Embedded CycloneTCP up to 2.0.0. Affected is an unknown functionality of the component TCP Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was published 03/09/2021 as de5336016edbe1e90327d0ed1cba5c4e49114366. The advisory is available at github.com. This vulnerability is traded as CVE-2021-26788. The technical details are unknown and an exploit is not available.

Upgrading to version 2.0.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Oryx Embedded

Name

CycloneTCP

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CycloneTCP 2.0.2
Patch: github.com

Timelineinfo

02/05/2021 🔍
03/09/2021 +32 days 🔍
03/09/2021 +0 days 🔍
03/29/2021 +20 days 🔍

Sourcesinfo

Advisory: de5336016edbe1e90327d0ed1cba5c4e49114366
Status: Confirmed

CVE: CVE-2021-26788 (🔍)
GCVE (CVE): GCVE-0-2021-26788
GCVE (VulDB): GCVE-100-170850

Entryinfo

Created: 03/09/2021 11:36
Updated: 03/29/2021 11:25
Changes: 03/09/2021 11:36 (40), 03/29/2021 11:20 (5), 03/29/2021 11:25 (18)
Complete: 🔍
Cache ID: 216::103