CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.8 | $5k-$25k | 0.00 |
A vulnerability, which was classified as critical, has been found in Netgear R6400 and R6700 1.0.4.98 (Wireless LAN Software). This issue affects some unknown functionality of the component upnpd. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to 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). Impacted is confidentiality, integrity, and availability.
The weakness was shared 03/30/2021. The advisory is shared at zerodayinitiative.com. The identification of this vulnerability is CVE-2021-27239. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/06/2021).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Type
Vendor
Name
Version
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: 8.8VulDB Meta Temp Score: 8.8
VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
ATT&CK: Unknown
Local: No
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 |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
02/16/2021 🔍03/30/2021 🔍
03/30/2021 🔍
04/06/2021 🔍
Sources
Vendor: netgear.comAdvisory: zerodayinitiative.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-27239 (🔍)
Entry
Created: 03/30/2021 09:46Updated: 04/06/2021 14:57
Changes: 03/30/2021 09:46 (38), 04/06/2021 14:55 (2), 04/06/2021 14:57 (17)
Complete: 🔍
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