CVE-2021-1491

mediumpriority · track · 0EPSS 0.013 · 71 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.33% (71st) EPSS

CVSS 6.5 · medium

Is it mine?

128 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to read arbitrary files on the underlying file system of the device. This vulnerability is due to insufficient file scope limiting. An attacker could exploit this vulnerability by creating a specific file reference on the file system and then accessing it through the web-based management interface. A successful exploit could allow the attacker to read arbitrary files from the file system of the underlying operating system.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

remediations

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

A vendor fix is available.

FixedCisco Catalyst SD-WAN Managercisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:X/RL:X/RC:Xsecondary · ENISA EU

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · psirt@cisco.com USexploitability 2.8 · impact 3.6

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · Cisco PSIRT US

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-59USCWE-59US

affected products (128)

Products and version ranges known to be affected.

Cisco Cisco Catalyst SD-WAN Managerall versionscisco_csafUS
Cisco Cisco Catalyst SD-WAN Manager≤ 20.3.2.1_930enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 20.3.2_928enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 20.1.2_937enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 19.2.099enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 18.2.0enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 19.2.4enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 20.1.1enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 20.3.2.1enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 18.4.3enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 20.3.2_937enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 20.3.2_929enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 18.3.3.1enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 18.3.1.1enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 20.4.1enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 17.2.7enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 19.2.31enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 18.4.1enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 19.2.3enisa_euvdEU
Cisco Cisco Catalyst SD-WAN Manager≤ 19.2.097enisa_euvdEU

showing 20 of 128

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-vmanage-info-disclos-gGvm9MfuCisco SD-WAN vManage Software Information Disclosure Vulnerability2021-04-21csaf · cisco_csafUS
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to read arbitrary files on the underlying file system of the device. This vulnerability is due to insufficient file scope limiting. An attacker could exploit this vulnerability by creating a specific file reference on the file system and then accessing it through the web-based management interface. A successful exploit could allow the attacker to read arbitrary files from the file system of the underlying operating system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf NVD CVE.org MITRE

published 2024-11-15modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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