CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.0 | $0-$5k | 0.00 |
A vulnerability was found in Dell PowerEdge R640, PowerEdge R740, PowerEdge R740XD, PowerEdge R840, PowerEdge R940, PowerEdge R940xa, PowerEdge MX740c, PowerEdge MX840c and PowerEdge T640. It has been classified as critical. This affects an unknown functionality of the component NVDIMM-N. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.
The weakness was published 06/15/2021. The advisory is shared at dell.com. This vulnerability is uniquely identified as CVE-2021-21556. Neither technical details nor an exploit are publicly available.
Upgrading eliminates this vulnerability.
Product
Vendor
Name
- PowerEdge MX740c
- PowerEdge MX840c
- PowerEdge R640
- PowerEdge R740
- PowerEdge R740XD
- PowerEdge R840
- PowerEdge R940
- PowerEdge R940xa
- PowerEdge T640
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.2VulDB Meta Temp Score: 4.0
VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
ATT&CK: Unknown
Local: Yes
Remote: No
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
01/04/2021 🔍06/15/2021 🔍
06/15/2021 🔍
06/18/2021 🔍
Sources
Vendor: dell.comAdvisory: dell.com
Status: Confirmed
CVE: CVE-2021-21556 (🔍)
Entry
Created: 06/15/2021 07:10Updated: 06/18/2021 10:17
Changes: 06/15/2021 07:10 (36), 06/18/2021 10:12 (5), 06/18/2021 10:17 (1)
Complete: 🔍
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