Public proof of concept

CVE-2024-20356

A public proof of concept exists; no exploitation attested.

Published2024-04-24
WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) could allow an authenticated, remote attacker with Administrator-level privileges to perform command injection attacks on an affected system and elevate their privileges to root. This vulnerability is due to insufficient user input validation. An attacker could exploit this vulnerability by sending crafted commands to the web-based management interface of the affected software. A successful exploit could allow the attacker to elevate their privileges to root.

Timeline

dates in UTC

2024-04-2420:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-20356?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-20356?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

CISA-ADP

Cisco unified computing system

Branch	Affected	Fixed in	Source
—	all versions	no fix published	CISA-ADP

Cisco unified computing system e-series

Branch	Affected	Fixed in	Source
—	all versions	no fix published	CISA-ADP

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-10-23 19:24 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 2 repositories, unverifiednettitude/CVE-2024-20356SherllyNeo/CVE_2024_20356

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionpoc2024-04-25
OpenCVESSVC decisionpoc—
CNACVSS 3.18.7read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score29.6 %read 2026-10-23
PoC-in-GitHubproof of concept2read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Published: 2024-04-24
Last Modified: 2026-06-17
NVD status: Deferred

Frequently asked questions

What is CVE-2024-20356?

Is CVE-2024-20356 actively exploited?

A proof-of-concept exploit exists for CVE-2024-20356, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2024-20356?

CVE-2024-20356 has a CVSS v3 base score of 8.7 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N.

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