CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
9.6 | $5k-$25k | 0.00 |
A vulnerability was found in Cisco IOS XE SD-WAN (Router Operating System) (the affected version is unknown) and classified as very critical. Affected by this issue is an unknown code of the component vDaemon. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.
The weakness was released 09/23/2021 as cisco-sa-iosxesdwan-rbuffover-vE2OB6tp. The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2021-34727 since 06/15/2021. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/23/2021).
Upgrading eliminates this vulnerability.
Product
Type
Vendor
Name
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: 9.8VulDB Meta Temp Score: 9.6
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 9.8
CNA Vector (Cisco Systems, Inc.): 🔍
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: Buffer overflowCWE: CWE-120 / CWE-119
ATT&CK: Unknown
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
06/15/2021 🔍09/23/2021 🔍
09/23/2021 🔍
10/01/2021 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-iosxesdwan-rbuffover-vE2OB6tp
Status: Confirmed
CVE: CVE-2021-34727 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150108
Entry
Created: 09/23/2021 12:15Updated: 10/01/2021 13:52
Changes: 09/23/2021 12:15 (49), 10/01/2021 13:52 (1)
Complete: 🔍
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