CVE-2026-20107

Device reload via crafted Object Model commands

Published Feb 25, 2026 · Updated Feb 25, 2026

Denial of service in Cisco APIC 6.1(1f), 6.1(2f), 6.1(2g), 6.1(3f), and 6.1(3g) allows local users to reload the device. The Object Model CLI accepts and processes crafted commands without sufficient input validation; Cisco has not disclosed the exact command parser or malformed fields. Valid credentials and any role with CLI access are required, and successful exploitation interrupts controller availability regardless of device configuration.

CVSS severity5.5
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Cisco APIC 6.1(1f), 6.1(2f), 6.1(2g), 6.1(3f), and 6.1(3g) allows local users to reload the device. The Object Model CLI accepts and processes crafted commands without sufficient input validation; Cisco has not disclosed the exact command parser or malformed fields. Valid credentials and any role with CLI access are required, and successful exploitation interrupts controller availability regardless of device configuration.

The record

CVE
CVE-2026-20107
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
ClamAV
Product
Cisco Application Policy Infrastructure Controller (APIC)
Classifications
CWE-1220, T1529
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.1(1f)
  2. Affected versionversion=6.1(2f)
  3. Affected versionversion=6.1(2g)
  4. Affected versionversion=6.1(3f)
  5. Affected versionversion=6.1(3g)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Application Policy Infrastructure Controller (APIC)version=6.1(1f); version=6.1(2f); version=6.1(2g); version=6.1(3f); version=6.1(3g)

Published CVSS scores

5.5Cisco Systems, Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1220Insufficient Granularity of Access Control
T1529System Shutdown/Reboot

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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