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Description

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an unauthenticated, remote attacker to read arbitrary files that are stored in an affected system. The attacker does not need to have valid user credentials. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to read arbitrary files that are stored in the affected system.

PUBLISHED Reserved 2025-10-08 | Published 2026-05-14 | Updated 2026-05-14 | Assigner cisco




HIGH: 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Problem types

Improper Input Validation

Product status

Default status
unknown

20.1.12
affected

19.2.1
affected

18.4.4
affected

18.4.5
affected

20.1.1.1
affected

20.1.1
affected

19.3.0
affected

19.2.2
affected

19.2.099
affected

18.3.6
affected

18.3.7
affected

19.2.0
affected

18.3.8
affected

19.0.0
affected

19.1.0
affected

18.4.302
affected

18.4.303
affected

19.2.097
affected

19.2.098
affected

17.2.10
affected

18.3.6.1
affected

19.0.1a
affected

18.2.0
affected

18.4.3
affected

18.4.1
affected

17.2.8
affected

18.3.3.1
affected

18.4.0
affected

18.3.1
affected

17.2.6
affected

17.2.9
affected

18.3.4
affected

17.2.5
affected

18.3.1.1
affected

18.3.5
affected

18.4.0.1
affected

18.3.3
affected

17.2.7
affected

17.2.4
affected

18.3.0
affected

19.2.3
affected

18.4.501_ES
affected

20.3.1
affected

20.1.2
affected

19.2.929
affected

19.2.31
affected

20.3.2
affected

19.2.32
affected

20.3.2_925
affected

20.3.2.1
affected

20.3.2.1_927
affected

18.4.6
affected

20.1.2_937
affected

20.4.1
affected

20.3.2_928
affected

20.3.2_929
affected

20.4.1.0.1
affected

20.3.2.1_930
affected

19.2.4
affected

20.5.0.1.1
affected

20.4.1.1
affected

20.3.3
affected

19.2.4.0.1
affected

20.3.2_937
affected

20.3.3.1
affected

20.5.1
affected

20.1.3
affected

20.3.3.0.4
affected

20.3.3.1.2
affected

20.3.3.1.1
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20.4.1.2
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20.3.3.0.2
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20.4.1.1.5
affected

20.4.1.0.01
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20.4.1.0.02
affected

20.3.3.1.7
affected

20.3.3.1.5
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20.5.1.0.1
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20.3.3.1.10
affected

20.3.3.0.8
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20.4.2
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20.4.2.0.1
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20.3.4
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20.3.3.0.14
affected

19.2.4.0.8
affected

19.2.4.0.9
affected

20.3.4.0.1
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20.3.2.0.5
affected

20.6.1
affected

20.5.1.0.2
affected

20.3.3.0.17
affected

20.6.1.1
affected

20.6.0.18.3
affected

20.3.2.0.6
affected

20.6.0.18.4
affected

20.4.2.0.2
affected

20.3.3.0.16
affected

20.3.4.0.5
affected

20.6.1.0.1
affected

20.3.4.0.6
affected

20.6.2
affected

20.7.1EFT2
affected

20.3.4.0.9
affected

20.3.4.0.11
affected

20.4.2.0.4
affected

20.3.3.0.18
affected

20.7.1
affected

20.6.2.1
affected

20.3.4.1
affected

20.5.1.1
affected

20.4.2.1
affected

20.4.2.1.1
affected

20.3.4.1.1
affected

20.3.813
affected

20.3.4.0.19
affected

20.4.2.2.1
affected

20.5.1.2
affected

20.3.4.2
affected

20.3.814
affected

20.4.2.2
affected

20.6.2.2
affected

20.3.4.2.1
affected

20.7.1.1
affected

20.3.4.1.2
affected

20.6.2.2.2
affected

20.3.4.0.20
affected

20.6.2.2.3
affected

20.4.2.2.2
affected

20.3.5
affected

20.6.2.0.4
affected

20.4.2.2.3
affected

20.3.4.0.24
affected

20.6.2.2.7
affected

20.6.3
affected

20.3.4.2.2
affected

20.4.2.2.4
affected

20.7.1.0.2
affected

20.8.1
affected

20.3.5.0.8
affected

20.3.5.0.9
affected

20.4.2.2.8
affected

20.3.5.0.7
affected

20.6.3.0.7
affected

20.6.3.0.5
affected

20.6.3.0.10
affected

20.6.3.0.2
affected

20.7.2
affected

20.9.1EFT2
affected

20.6.3.0.11
affected

20.6.3.1
affected

20.6.3.0.14
affected

20.6.4
affected

20.9.1
affected

20.6.3.0.19
affected

20.6.3.0.18
affected

20.3.6
affected

20.9.1.1
affected

20.6.3.0.23
affected

20.6.4.0.4
affected

20.6.3.0.25
affected

20.6.5
affected

20.6.3.0.27
affected

20.9.2
affected

20.9.2.1
affected

20.6.3.0.29
affected

20.6.3.0.31
affected

20.6.3.0.32
affected

20.10.1
affected

20.6.3.0.33
affected

20.9.2.0.01
affected

20.9.1_LI_Images
affected

20.10.1_LI_Images
affected

20.9.2_LI_Images
affected

20.3.7
affected

20.9.3
affected

20.6.5.1
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20.11.1
affected

20.11.1_LI_Images
affected

20.9.3_LI_ Images
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20.6.3.1.1
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20.9.3.0.2
affected

20.6.5.1.2
affected

20.9.3.0.3
affected

20.4.2.3
affected

20.6.3.2
affected

20.6.4.1
affected

20.6.3.0.38
affected

20.6.3.0.39
affected

20.3.5.1
affected

20.3.4.3
affected

20.9.3.1
affected

20.3.3.2
affected

20.6.5.2
affected

20.3.7.1
affected

20.10.1.1
affected

20.6.5.2.1
affected

20.3.4.0.25
affected

20.6.2.2.4
affected

20.6.1.2
affected

20.11.1.1
affected

20.9.3.0.5
affected

20.3.4.0.26
affected

20.6.5.1.3
affected

20.6.3.0.40
affected

20.1.3.1
affected

20.9.2.2
affected

20.6.5.2.3
affected

20.6.5.1.4
affected

20.6.5.3
affected

20.6.3.0.41
affected

20.9.3.0.7
affected

20.6.5.1.5
affected

20.9.3.0.4
affected

20.6.4.0.19
affected

20.6.5.1.6
affected

20.9.3.0.8
affected

20.6.3.3
affected

20.3.7.2
affected

20.6.5.4
affected

20.6.5.1.7
affected

20.9.3.0.12
affected

20.6.4.2
affected

20.6.5.5
affected

20.9.3.2
affected

20.11.1.2
affected

20.6.3.4
affected

20.10.1.2
affected

20.6.5.1.9
affected

20.9.3.0.16
affected

20.6.3.0.45
affected

20.6.5.1.10
affected

20.9.3.0.17
affected

20.6.5.2.4
affected

20.6.4.0.21
affected

20.9.3.0.18
affected

20.6.3.0.46
affected

20.6.3.0.47
affected

20.9.2.3
affected

20.9.3.2_LI_Images
affected

20.9.3.0.21
affected

20.9.3.0.20
affected

20.9.4_LI_Images
affected

20.9.4
affected

20.6.5.1.11
affected

20.12.1
affected

20.12.1_LI_Images
affected

20.6.5.1.13
affected

20.9.3.0.23
affected

20.6.5.2.8
affected

20.9.4.1
affected

20.9.4.1_LI_Images
affected

20.9.3.0.25
affected

20.9.3.0.24
affected

20.6.5.1.14
affected

20.3.8
affected

20.6.6
affected

20.9.3.0.26
affected

20.6.3.0.51
affected

20.9.3.0.29
affected

20.12.2
affected

20.12.2_LI_Images
affected

20.6.6.0.1
affected

20.13.1_LI_Images
affected

20.9.4.0.4
affected

20.13.1
affected

20.9.4.1.1
affected

20.9.5
affected

20.9.5_LI_Images
affected

20.12.3_LI_Images
affected

20.12.3
affected

20.9.4.1.3
affected

20.6.7
affected

20.9.5.1
affected

20.9.5.1_LI_Images
affected

20.9.4.1.6
affected

20.14.1
affected

20.14.1_LI_Images
affected

20.9.5.2
affected

20.9.5.2.1
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20.9.5.2_LI_Images
affected

20.12.3.1
affected

20.12.4
affected

20.15.1_LI_Images
affected

20.15.1
affected

20.9.5.1.4
affected

20.9.5.2.7
affected

20.9.5.2.13
affected

20.9.6
affected

20.9.6_LI_Images
affected

20.9.5.2.14
affected

20.6.8
affected

20.12.4.0.03
affected

20.16.1
affected

20.16.1_LI_Images
affected

20.12.4_LI_Images
affected

20.9.5.2.16
affected

20.12.4.0.4
affected

20.12.401
affected

20.9.5.3
affected

20.9.5.3_LI_Images
affected

20.12.4.1_LI_Images
affected

20.12.4.1
affected

20.9.5.2.21
affected

20.9.6.0.3
affected

20.12.4.0.6
affected

20.15.2_LI_Images
affected

20.15.2
affected

20.12.4_Monthly_ES5
affected

20.12.5
affected

20.12.5_LI_Images
affected

20.9.7_LI _Images
affected

20.9.7
affected

20.15.3
affected

20.15.3_ LI _Images
affected

20.12.501
affected

20.12.5.1_LI_Images
affected

20.12.5.1
affected

20.12.5.2_LI_Images
affected

20.12.5.2
affected

20.15.3.1
affected

20.15.4_LI_Images
affected

20.15.4
affected

20.9.7.1_LI _Images
affected

20.9.7.1
affected

20.18.1
affected

20.18.1_LI_Images
affected

20.12.6_LI_Images
affected

20.12.6
affected

20.12.5.1.01
affected

26.0.1
affected

20.9.8
affected

20.9.8_LI_Images
affected

20.18.2
affected

20.15.4.1_LI_Images
affected

20.15.4.1
affected

20.18.2_LI_Images
affected

26.1.1
affected

26.1.1_LI_Images
affected

20.18.2.1_LI_Images
affected

20.18.2.1
affected

20.15.4.2_LI_Images
affected

20.15.4.2
affected

20.12.6.1
affected

20.12.6.1_LI_Images
affected

20.12.5.3
affected

20.12.5.3_LI_Images
affected

20.9.8.2_LI_Images
affected

20.9.8.2
affected

20.18.3
affected

20.18.3_LI_Images
affected

20.15.5
affected

20.15.5_LI_Images
affected

20.12.7
affected

20.12.7_LI_Images
affected

20.9.9
affected

20.9.9_LI_Images
affected

20.18.2.2
affected

20.18.2.2_LI_Images
affected

20.12.5.4
affected

20.12.5.4_LI_ Images
affected

20.12.7.1_LI_Images
affected

20.12.6.2_LI_Images
affected

20.12.7.1
affected

References

sec.cloudapps.cisco.com/...y/cisco-sa-sdwan-mltvnps2-JxpWm7R (cisco-sa-sdwan-mltvnps2-JxpWm7R)

sec.cloudapps.cisco.com/...visory/cisco-sa-sdwan-rpa-EHchtZk (Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability</a> was disclosed in February 2026. This new advisory is for a new vulnerability in the control connection handshaking. The <a href="#IOC">Indicators of Compromise)

cve.org (CVE-2026-20224)

nvd.nist.gov (CVE-2026-20224)

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