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cveCiscoCVE-2021-1611
HistorySep 23, 2021 - 3:15 a.m.

CVE-2021-1611

2021-09-2303:15:11
CWE-399
cisco
web.nvd.nist.gov
39
2
cve-2021-1611
ethernet over gre
eogre
cisco
ios xe
wireless controller
catalyst 9800
denial of service
dos
nvd

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON

A vulnerability in Ethernet over GRE (EoGRE) packet processing of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9800 Family Wireless Controller, Embedded Wireless Controller, and Embedded Wireless on Catalyst 9000 Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper processing of malformed EoGRE packets. An attacker could exploit this vulnerability by sending malicious packets to the affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Affected configurations

Nvd
Node
ciscoios_xeRange<17.3.1
AND
ciscocatalyst_9800Match-
OR
ciscocatalyst_9800-40Match-
OR
ciscocatalyst_9800-80Match-
OR
ciscocatalyst_9800-clMatch-
OR
ciscocatalyst_9800-lMatch-
OR
ciscocatalyst_9800-l-cMatch-
OR
ciscocatalyst_9800-l-fMatch-
VendorProductVersionCPE
ciscoios_xe*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
ciscocatalyst_9800-cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:*
ciscocatalyst_9800-40-cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:*
ciscocatalyst_9800-80-cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:*
ciscocatalyst_9800-cl-cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:*
ciscocatalyst_9800-l-cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:*
ciscocatalyst_9800-l-c-cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:*
ciscocatalyst_9800-l-f-cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "Cisco IOS XE Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

Social References

More

Related

cvelist 1
nvd 1
cisco 1
prion 1
cvelist
cvelist
CVE-2021-1611 Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers EoGRE Denial of Service Vulnerability
2021-09-23 02:30:34
nvd
nvd
CVE-2021-1611
2021-09-23 03:15:11
cisco
cisco
Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers EoGRE Denial of Service Vulnerability
2021-09-22 16:00:00
prion
prion
Design/Logic Flaw
2021-09-23 03:15:00

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON
Related for CVE-2021-1611
cvelist1nvd1cisco1prion1