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TenableCVE-2021-20157

HistoryDec 30, 2021 - 10:15 p.m.

CVE-2021-20157

2021-12-3022:15:08

tenable

web.nvd.nist.gov

cve-2021-20157

unauthenticated

malicious user

reboot

nvd

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

50.5%

JSON

It is possible for an unauthenticated, malicious user to force the device to reboot due to a hidden administrative command.

Affected configurations

Nvd

Node

trendnettew-827druMatch-

AND

trendnettew-827dru_firmwareMatch-

VendorProductVersionCPE
trendnettew-827dru-cpe:2.3:h:trendnet:tew-827dru:-:*:*:*:*:*:*:*
trendnettew-827dru_firmware-cpe:2.3:o:trendnet:tew-827dru_firmware:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
trendnet	tew-827dru	-	cpe:2.3:h:trendnet:tew-827dru:-:::::::*
trendnet	tew-827dru_firmware	-	cpe:2.3:o:trendnet:tew-827dru_firmware:-:::::::*

CNA Affected

[
  {
    "product": "Trendnet AC2600 TEW-827DRU",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "2.08B01"
      }
    ]
  }
]

References

www.tenable.com/security/research/tra-2021-54

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

50.5%

JSON

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