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Recorded 14 Oct 2026 at 10:19 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

Cisco IOS XE Web UI Command Injection Vulnerability

Cisco IOS XE contains a command injection vulnerability in the web user interface. When chained with CVE-2023-20198, the attacker can leverage the new local user to elevate privilege to root and write the implant to the file system. Cisco identified CVE-2023-20273 as the vulnerability exploited to deploy the implant. CVE-2021-1435, previously associated with the exploitation events, is no longer believed to be related to this activity.

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What it said

CVE
CVE-2023-20273
Vendor
Cisco
Product
Cisco IOS XE Web UI
CISA KEV
Listed 23 Oct 2023
Known ransomware use
Not stated
Federal remediation due
27 Oct 2023

Source evidence when recorded

CISA KEV
Complete at observationRead 14 Oct 2026 at 10:18 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

What changed

First observed 14 Oct 2026

No field changes in the recorded history.

Cite this recorded revision to keep the same title, summary, facts and links when the page changes.

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 14 Oct 18:00 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current