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cveCiscoCVE-2020-3527
HistorySep 24, 2020 - 6:15 p.m.

CVE-2020-3527

2020-09-2418:15:21
CWE-400
CWE-20
cisco
web.nvd.nist.gov
29
vulnerability
polaris kernel
cisco catalyst 9200 series switches
unauthenticated
remote attacker
crash
insufficient packet size validation
jumbo frames
mtu size
management interface
automatic recovery
cve-2020-3527
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

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 the Polaris kernel of Cisco Catalyst 9200 Series Switches could allow an unauthenticated, remote attacker to crash the device. The vulnerability is due to insufficient packet size validation. An attacker could exploit this vulnerability by sending jumbo frames or frames larger than the configured MTU size to the management interface of this device. A successful exploit could allow the attacker to crash the device fully before an automatic recovery.

Affected configurations

Nvd
Node
ciscoios_xeRange16.9.0–16.9.5
OR
ciscoios_xeRange16.12.0–16.12.3
AND
ciscocatalyst_c9200l-24p-4gMatch-
OR
ciscocatalyst_c9200l-24p-4xMatch-
OR
ciscocatalyst_c9200l-24pxg-2yMatch-
OR
ciscocatalyst_c9200l-24pxg-4xMatch-
OR
ciscocatalyst_c9200l-24t-4gMatch-
OR
ciscocatalyst_c9200l-24t-4xMatch-
OR
ciscocatalyst_c9200l-48p-4gMatch-
OR
ciscocatalyst_c9200l-48p-4xMatch-
OR
ciscocatalyst_c9200l-48pxg-2yMatch-
OR
ciscocatalyst_c9200l-48pxg-4xMatch-
OR
ciscocatalyst_c9200l-48t-4gMatch-
OR
ciscocatalyst_c9200l-48t-4xMatch-
VendorProductVersionCPE
ciscoios_xe*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24p-4g-cpe:2.3:h:cisco:catalyst_c9200l-24p-4g:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24p-4x-cpe:2.3:h:cisco:catalyst_c9200l-24p-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24pxg-2y-cpe:2.3:h:cisco:catalyst_c9200l-24pxg-2y:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24pxg-4x-cpe:2.3:h:cisco:catalyst_c9200l-24pxg-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24t-4g-cpe:2.3:h:cisco:catalyst_c9200l-24t-4g:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24t-4x-cpe:2.3:h:cisco:catalyst_c9200l-24t-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-48p-4g-cpe:2.3:h:cisco:catalyst_c9200l-48p-4g:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-48p-4x-cpe:2.3:h:cisco:catalyst_c9200l-48p-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-48pxg-2y-cpe:2.3:h:cisco:catalyst_c9200l-48pxg-2y:-:*:*:*:*:*:*:*
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CNA Affected

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

Related

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Design/Logic Flaw
2020-09-24 18:15:00
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CVE-2020-3527 Cisco Catalyst 9200 Series Switches Jumbo Frame Denial of Service Vulnerability
2020-09-24 17:51:13
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Cisco Catalyst 9200 Series Switches Jumbo Frame Denial of Service Vulnerability
2020-09-24 16:00:00
nvd
nvd
CVE-2020-3527
2020-09-24 18:15:21

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

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-2020-3527
nessus1prion1cvelist1cisco1nvd1