CVE-2021-1600

mediumpriority · track · 33EPSS 0.004 · 34 %ileEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.40% (34th) EPSS
CVSS 5.8 · medium
Is it mine?
4 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-28

Multiple vulnerabilities in Cisco Intersight Virtual Appliance could allow an unauthenticated, adjacent attacker to access sensitive internal services from an external interface. These vulnerabilities are due to insufficient restrictions for IPv4 or IPv6 packets that are received on the external management interface. An attacker could exploit these vulnerabilities by sending specific traffic to this interface on an affected device. A successful exploit could allow the attacker to access sensitive internal services and make configuration changes on the affected device.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

8.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.8–8.3

v2.05.8mediumAV:A/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 6.5 · impact 6.4
v3.18.3highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.5
v3.18.3highAV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.18.3highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · ENISA EU
v3.18.3highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · psirt@cisco.com USexploitability 2.8 · impact 5.5
v3.17.6highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.18.3highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · Cisco PSIRT US
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-284US
05

affected products (4)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • cisco-sa-ucsi2-iptaclbp-L8Dzs8m8Cisco Intersight Virtual Appliance IPv4 and IPv6 Forwarding Vulnerabilities2021-07-21csaf · cisco_csafUS

    Multiple vulnerabilities in Cisco Intersight Virtual Appliance could allow an unauthenticated, adjacent attacker to access sensitive internal services from an external interface. These vulnerabilities are due to insufficient restrictions for IPv4 or IPv6 packets that are received on the external management interface. An attacker could exploit these vulnerabilities by sending specific traffic to this interface on an affected device. A successful exploit could allow the attacker to access sensitive internal services and make configuration changes on the affected device. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisco_csafnvdNVDCVE.orgMITRE
published 2021-07-22modified 2026-06-17
09

references (7)

External citations — patches, advisories, analysis.

scry

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