| 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. |
|---|---|---|
| 3.4 | $0-$5k | 0.62 |
A vulnerability classified as problematic has been found in CODESYS Gateway. This affects an unknown code of the component Communication Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-476. This is going to have an impact on availability. The summary by CVE is:
In CODESYS Gateway V3 before 3.5.17.10, there is a NULL Pointer Dereference. Crafted communication requests may cause a Null pointer dereference in the affected CODESYS products and may result in a denial-of-service condition.
The weakness was published 08/05/2021. It is possible to read the advisory at customers.codesys.com. This vulnerability is uniquely identified as CVE-2021-36764 since 07/16/2021. The attack needs to be initiated within the local network. A authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.
Upgrading to version 3.5.17.10 eliminates this vulnerability.
Vendor
Name
VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
| 🔍 | 🔍 | 🔍 | 🔍 | 🔍 | 🔍 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| unlock | unlock | unlock | unlock | unlock | unlock |
| unlock | unlock | unlock | unlock | unlock | unlock |
| unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Denial of service
CWE: CWE-476
ATT&CK: Unknown
Local: No
Remote: Partially
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | unlock | unlock | unlock | unlock |
|---|---|---|---|---|
| Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍
0-Day Time: 🔒
Upgrade: Gateway 3.5.17.10
07/16/2021 CVE assigned
08/05/2021 Advisory disclosed
08/05/2021 VulDB entry created
08/08/2021 VulDB last updateAdvisory: customers.codesys.com
Status: Confirmed
Confirmation: 🔒
CVE: CVE-2021-36764 (🔒)
Created: 08/05/2021 08:26
Updated: 08/08/2021 15:46
Changes: (3) source_cve_assigned source_cve_nvd_summary advisory_confirm_url
Complete: 🔍
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