FKIE_CVE-2026-20209
Vulnerability from fkie_nvd - Published: 2026-05-14 17:16 - Updated: 2026-10-26 14:10
Severity
Summary
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker with read-only permissions to elevate their privileges from low to high and perform actions as a high-privileged user.
This vulnerability exists because sensitive session information is recorded in audit logs. An attacker could exploit this vulnerability by elevating their read-only permissions in Cisco Catalyst SD-WAN Manager to those of a high-privileged user. A successful exploit could allow the attacker to perform actions as a high-privileged user.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | * | |
| cisco | catalyst_sd-wan_manager | 20.12.7 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "Cisco Catalyst SD-WAN Manager",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "20.1.12"
},
{
"status": "affected",
"version": "19.2.1"
},
{
"status": "affected",
"version": "18.4.4"
},
{
"status": "affected",
"version": "18.4.5"
},
{
"status": "affected",
"version": "20.1.1.1"
},
{
"status": "affected",
"version": "20.1.1"
},
{
"status": "affected",
"version": "19.3.0"
},
{
"status": "affected",
"version": "19.2.2"
},
{
"status": "affected",
"version": "19.2.099"
},
{
"status": "affected",
"version": "18.3.6"
},
{
"status": "affected",
"version": "18.3.7"
},
{
"status": "affected",
"version": "19.2.0"
},
{
"status": "affected",
"version": "18.3.8"
},
{
"status": "affected",
"version": "19.0.0"
},
{
"status": "affected",
"version": "19.1.0"
},
{
"status": "affected",
"version": "18.4.302"
},
{
"status": "affected",
"version": "18.4.303"
},
{
"status": "affected",
"version": "19.2.097"
},
{
"status": "affected",
"version": "19.2.098"
},
{
"status": "affected",
"version": "17.2.10"
},
{
"status": "affected",
"version": "18.3.6.1"
},
{
"status": "affected",
"version": "19.0.1a"
},
{
"status": "affected",
"version": "18.2.0"
},
{
"status": "affected",
"version": "18.4.3"
},
{
"status": "affected",
"version": "18.4.1"
},
{
"status": "affected",
"version": "17.2.8"
},
{
"status": "affected",
"version": "18.3.3.1"
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{
"status": "affected",
"version": "18.4.0"
},
{
"status": "affected",
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},
{
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"status": "affected",
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{
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{
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{
"status": "affected",
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{
"status": "affected",
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},
{
"status": "affected",
"version": "18.4.0.1"
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{
"status": "affected",
"version": "18.3.3"
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{
"status": "affected",
"version": "17.2.7"
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{
"status": "affected",
"version": "17.2.4"
},
{
"status": "affected",
"version": "18.3.0"
},
{
"status": "affected",
"version": "19.2.3"
},
{
"status": "affected",
"version": "18.4.501_ES"
},
{
"status": "affected",
"version": "20.3.1"
},
{
"status": "affected",
"version": "20.1.2"
},
{
"status": "affected",
"version": "19.2.929"
},
{
"status": "affected",
"version": "19.2.31"
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{
"status": "affected",
"version": "20.3.2"
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{
"status": "affected",
"version": "19.2.32"
},
{
"status": "affected",
"version": "20.3.2_925"
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{
"status": "affected",
"version": "20.3.2.1"
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{
"status": "affected",
"version": "20.3.2.1_927"
},
{
"status": "affected",
"version": "18.4.6"
},
{
"status": "affected",
"version": "20.1.2_937"
},
{
"status": "affected",
"version": "20.4.1"
},
{
"status": "affected",
"version": "20.3.2_928"
},
{
"status": "affected",
"version": "20.3.2_929"
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{
"status": "affected",
"version": "20.4.1.0.1"
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{
"status": "affected",
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{
"status": "affected",
"version": "19.2.4"
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{
"status": "affected",
"version": "20.5.0.1.1"
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{
"status": "affected",
"version": "20.4.1.1"
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{
"status": "affected",
"version": "20.3.3"
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{
"status": "affected",
"version": "19.2.4.0.1"
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{
"status": "affected",
"version": "20.3.2_937"
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{
"status": "affected",
"version": "20.3.3.1"
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{
"status": "affected",
"version": "20.5.1"
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{
"status": "affected",
"version": "20.1.3"
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{
"status": "affected",
"version": "20.3.3.0.4"
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{
"status": "affected",
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{
"status": "affected",
"version": "20.3.3.1.1"
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"status": "affected",
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{
"status": "affected",
"version": "20.3.3.0.2"
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"status": "affected",
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"status": "affected",
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{
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"version": "20.4.1.0.02"
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{
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"version": "20.3.3.1.7"
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"status": "affected",
"version": "20.3.3.1.5"
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{
"status": "affected",
"version": "20.5.1.0.1"
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{
"status": "affected",
"version": "20.3.3.1.10"
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{
"status": "affected",
"version": "20.3.3.0.8"
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{
"status": "affected",
"version": "20.4.2"
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{
"status": "affected",
"version": "20.4.2.0.1"
},
{
"status": "affected",
"version": "20.3.4"
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{
"status": "affected",
"version": "20.3.3.0.14"
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{
"status": "affected",
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{
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{
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{
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{
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{
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"status": "affected",
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{
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{
"status": "affected",
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{
"status": "affected",
"version": "20.7.1EFT2"
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{
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{
"status": "affected",
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{
"status": "affected",
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{
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"version": "20.3.3.0.18"
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{
"status": "affected",
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{
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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{
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{
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{
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"version": "20.3.4.0.19"
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{
"status": "affected",
"version": "20.4.2.2.1"
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{
"status": "affected",
"version": "20.5.1.2"
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{
"status": "affected",
"version": "20.3.4.2"
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{
"status": "affected",
"version": "20.3.814"
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{
"status": "affected",
"version": "20.4.2.2"
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{
"status": "affected",
"version": "20.6.2.2"
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{
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"version": "20.3.4.2.1"
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{
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{
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"version": "20.3.4.1.2"
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{
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{
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{
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{
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{
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"version": "20.3.5"
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{
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{
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{
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"version": "20.3.4.0.24"
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{
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"version": "20.6.2.2.7"
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{
"status": "affected",
"version": "20.6.3"
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{
"status": "affected",
"version": "20.3.4.2.2"
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{
"status": "affected",
"version": "20.4.2.2.4"
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{
"status": "affected",
"version": "20.7.1.0.2"
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{
"status": "affected",
"version": "20.8.1"
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{
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"version": "20.3.5.0.8"
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"version": "20.6.3.0.25"
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{
"status": "affected",
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{
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{
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{
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{
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{
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{
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{
"status": "affected",
"version": "20.9.1_LI_Images"
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{
"status": "affected",
"version": "20.10.1_LI_Images"
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{
"status": "affected",
"version": "20.9.2_LI_Images"
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{
"status": "affected",
"version": "20.3.7"
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{
"status": "affected",
"version": "20.9.3"
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{
"status": "affected",
"version": "20.6.5.1"
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{
"status": "affected",
"version": "20.11.1"
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{
"status": "affected",
"version": "20.11.1_LI_Images"
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{
"status": "affected",
"version": "20.9.3_LI_ Images"
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{
"status": "affected",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"status": "affected",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"status": "affected",
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{
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{
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{
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{
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{
"status": "affected",
"version": "20.6.3.0.47"
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{
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"version": "20.9.2.3"
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{
"status": "affected",
"version": "20.9.3.2_LI_Images"
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{
"status": "affected",
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{
"status": "affected",
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{
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"version": "20.9.4_LI_Images"
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{
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"version": "20.9.4"
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{
"status": "affected",
"version": "20.6.5.1.11"
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{
"status": "affected",
"version": "20.12.1"
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{
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"version": "20.12.1_LI_Images"
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{
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{
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{
"status": "affected",
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{
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{
"status": "affected",
"version": "20.9.4.1_LI_Images"
},
{
"status": "affected",
"version": "20.9.3.0.25"
},
{
"status": "affected",
"version": "20.9.3.0.24"
},
{
"status": "affected",
"version": "20.6.5.1.14"
},
{
"status": "affected",
"version": "20.3.8"
},
{
"status": "affected",
"version": "20.6.6"
},
{
"status": "affected",
"version": "20.9.3.0.26"
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{
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"version": "20.6.3.0.51"
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{
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{
"status": "affected",
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{
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{
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{
"status": "affected",
"version": "20.13.1_LI_Images"
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{
"status": "affected",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"version": "20.9.5.1_LI_Images"
},
{
"status": "affected",
"version": "20.9.4.1.6"
},
{
"status": "affected",
"version": "20.14.1"
},
{
"status": "affected",
"version": "20.14.1_LI_Images"
},
{
"status": "affected",
"version": "20.9.5.2"
},
{
"status": "affected",
"version": "20.9.5.2.1"
},
{
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"version": "20.9.5.2_LI_Images"
},
{
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"version": "20.12.3.1"
},
{
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"version": "20.12.4"
},
{
"status": "affected",
"version": "20.15.1_LI_Images"
},
{
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},
{
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},
{
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},
{
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},
{
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"version": "20.9.6"
},
{
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},
{
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},
{
"status": "affected",
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},
{
"status": "affected",
"version": "20.12.4.0.03"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "20.16.1_LI_Images"
},
{
"status": "affected",
"version": "20.12.4_LI_Images"
},
{
"status": "affected",
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},
{
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},
{
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},
{
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},
{
"status": "affected",
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},
{
"status": "affected",
"version": "20.12.4.1_LI_Images"
},
{
"status": "affected",
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},
{
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},
{
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},
{
"status": "affected",
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},
{
"status": "affected",
"version": "20.15.2_LI_Images"
},
{
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},
{
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"version": "20.12.4_Monthly_ES5"
},
{
"status": "affected",
"version": "20.12.5"
},
{
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"version": "20.12.5_LI_Images"
},
{
"status": "affected",
"version": "20.9.7_LI _Images"
},
{
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},
{
"status": "affected",
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},
{
"status": "affected",
"version": "20.15.3_ LI _Images"
},
{
"status": "affected",
"version": "20.12.501"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "20.12.5.1"
},
{
"status": "affected",
"version": "20.12.5.2_LI_Images"
},
{
"status": "affected",
"version": "20.12.5.2"
},
{
"status": "affected",
"version": "20.15.3.1"
},
{
"status": "affected",
"version": "20.15.4_LI_Images"
},
{
"status": "affected",
"version": "20.15.4"
},
{
"status": "affected",
"version": "20.9.7.1_LI _Images"
},
{
"status": "affected",
"version": "20.9.7.1"
},
{
"status": "affected",
"version": "20.18.1"
},
{
"status": "affected",
"version": "20.18.1_LI_Images"
},
{
"status": "affected",
"version": "20.12.6_LI_Images"
},
{
"status": "affected",
"version": "20.12.6"
},
{
"status": "affected",
"version": "20.12.5.1.01"
},
{
"status": "affected",
"version": "26.0.1"
},
{
"status": "affected",
"version": "20.9.8"
},
{
"status": "affected",
"version": "20.9.8_LI_Images"
},
{
"status": "affected",
"version": "20.18.2"
},
{
"status": "affected",
"version": "20.15.4.1_LI_Images"
},
{
"status": "affected",
"version": "20.15.4.1"
},
{
"status": "affected",
"version": "20.18.2_LI_Images"
},
{
"status": "affected",
"version": "20.18.2.1_LI_Images"
},
{
"status": "affected",
"version": "20.18.2.1"
},
{
"status": "affected",
"version": "20.15.4.2_LI_Images"
},
{
"status": "affected",
"version": "20.15.4.2"
},
{
"status": "affected",
"version": "20.12.6.1"
},
{
"status": "affected",
"version": "20.12.6.1_LI_Images"
},
{
"status": "affected",
"version": "20.12.5.3"
},
{
"status": "affected",
"version": "20.12.5.3_LI_Images"
},
{
"status": "affected",
"version": "20.9.8.2_LI_Images"
},
{
"status": "affected",
"version": "20.9.8.2"
},
{
"status": "affected",
"version": "20.18.3"
},
{
"status": "affected",
"version": "20.18.3_LI_Images"
},
{
"status": "affected",
"version": "20.15.5"
},
{
"status": "affected",
"version": "20.15.5_LI_Images"
},
{
"status": "affected",
"version": "20.12.7"
},
{
"status": "affected",
"version": "20.12.7_LI_Images"
},
{
"status": "affected",
"version": "20.9.9"
},
{
"status": "affected",
"version": "20.9.9_LI_Images"
}
]
}
],
"source": "psirt@cisco.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5021D679-E23A-4D7F-B3B6-D664634A639C",
"versionEndExcluding": "20.9.9.1",
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},
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"matchCriteriaId": "26022018-2273-4589-BE4F-AD92DA31CB58",
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},
{
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"matchCriteriaId": "32A83687-B363-476B-89EF-B35C82575237",
"versionEndExcluding": "20.15.4.4",
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},
{
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"matchCriteriaId": "BB6A9216-3D47-4B33-B502-72B99859992E",
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{
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"matchCriteriaId": "6A03BCEF-DC25-488D-91D3-0A16F3B872E3",
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker with read-only permissions to elevate their privileges from low to high and perform actions as a high-privileged user.\r\n\r\nThis vulnerability exists because sensitive session information is recorded in audit logs. An attacker could exploit this vulnerability by elevating their read-only permissions in Cisco Catalyst SD-WAN Manager to those of a high-privileged user. A successful exploit could allow the attacker to perform actions as a high-privileged user."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la interfaz de usuario web de Cisco Catalyst SD-WAN Manager, anteriormente SD-WAN vManage, podr\u00eda permitir a un atacante remoto y autenticado con permisos de solo lectura elevar sus privilegios de bajos a altos y realizar acciones como un usuario con privilegios elevados.\n\nEsta vulnerabilidad existe porque informaci\u00f3n sensible de la sesi\u00f3n se registra en los registros de auditor\u00eda. Un atacante podr\u00eda explotar esta vulnerabilidad elevando sus permisos de solo lectura en Cisco Catalyst SD-WAN Manager a los de un usuario con privilegios elevados. Un exploit exitoso podr\u00eda permitir al atacante realizar acciones como un usuario con privilegios elevados."
}
],
"id": "CVE-2026-20209",
"lastModified": "2026-10-26T14:10:00.130",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.5,
"source": "psirt@cisco.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20209",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-14T00:00:00+00:00",
"version": "2.0.3"
}
}
]
},
"published": "2026-05-14T17:16:19.750",
"references": [
{
"source": "psirt@cisco.com",
"tags": [
"Vendor Advisory"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-mltvnps2-JxpWm7R"
},
{
"source": "psirt@cisco.com",
"tags": [
"Not Applicable"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk"
}
],
"sourceIdentifier": "psirt@cisco.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-779"
}
],
"source": "psirt@cisco.com",
"type": "Secondary"
}
]
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.