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cve[email protected]CVE-2021-34709
HistorySep 09, 2021 - 5:15 a.m.

CVE-2021-34709

2021-09-0905:15:10
CWE-347
[email protected]
web.nvd.nist.gov
36
cisco
network convergence system
ncs 540
routers
vulnerabilities
image verification
cisco ios xr
cisco 8000 series
nvd
cve-2021-34709

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

6.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

Multiple vulnerabilities in image verification checks of Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. For more information about these vulnerabilities, see the Details section of this advisory.

Affected configurations

NVD
Node
ciscoios_xrRange<7.3.2
AND
cisco8101-32fhMatch-
OR
cisco8101-32h
OR
cisco8102-64hMatch-
OR
cisco8201Match-
OR
cisco8201-32fhMatch-
OR
cisco8202Match-
OR
cisco8800_12-slotMatch-
OR
cisco8800_18-slotMatch-
OR
cisco8800_4-slotMatch-
OR
cisco8800_8-slotMatch-
Node
ciscoios_xrRange<7.3.2
OR
ciscoios_xrRange7.4.0–7.4.1
AND
ciscon540-12z20g-sys-aMatch-
OR
ciscon540-12z20g-sys-dMatch-
OR
ciscon540-24z8q2c-mMatch-
OR
ciscon540-24z8q2c-sysMatch-
OR
ciscon540-28z4c-sys-aMatch-
OR
ciscon540-28z4c-sys-dMatch-
OR
ciscon540-acc-sysMatch-
OR
ciscon540x-12z16g-sys-aMatch-
OR
ciscon540x-12z16g-sys-dMatch-
OR
ciscon540x-16z4g8q2c-aMatch-
OR
ciscon540x-16z4g8q2c-dMatch-
OR
ciscon540x-acc-sysMatch-
CPENameOperatorVersion
cisco:ios_xrcisco ios xrlt7.3.2

CNA Affected

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

Related

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6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

6.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON
Related for CVE-2021-34709
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