CVE-2026-20209

MEDIUM

CVSS v3.1: 5.4 · EPSS: 0.0019 (8.8 percentile)

NetworkNo user interactionVendor advisory ref

Source data as of:

At a glance

Severity
MEDIUM
CVSS
5.4 v3.1 · NVD
EPSS
0.0019 (8.8 percentile) · FIRST.org
CISA KEV
No
Attack conditions (CVSS vector)
NetworkNo user interaction · Source: NVD Vector
Affected vendors
cisco
Published
2026-05-14 · Modified: 2026-06-29

CVSS / EPSS / KEV

CVSS v3.1 5.4 / 10 MEDIUM Source: NVD
EPSS 0.0019 8.8 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

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.

Record details

CVE ID
CVE-2026-20209
CVSS (v3.1)
5.4 (MEDIUM)
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploitability subscore
2.8
Impact subscore
2.5
EPSS
0.0019 (8.8 percentile) — 2026-06-30
CISA KEV
No
Weakness (CWE)
CWE-779
Affected vendors
cisco
Affected configurations (CPE)
8
Published
2026-05-14
Modified
2026-06-29
Status
Analyzed

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.