6.5
MEDIUM
CVSS 3.1
CVE-2026-20288
Cisco IMC Remote Code Execution Vulnerability Remote Code Execution Vulnerability
Overview
Description
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with Admin privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. Cisco has assigned this vulnerability a SIR of High rather than Medium as the score indicates because additional security implications could occur when the attacker becomes root.
Details
INFO
Published Date :
Aug. 5, 2026, 5:16 p.m.
Last Modified :
Aug. 5, 2026, 6:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2026-20288
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
Update Cisco IMC to the latest version to fix arbitrary command execution.
- Update Cisco IMC to the latest available version.
- Apply any vendor-supplied security patches.
- Restrict administrative access to the management interface.
- Monitor system logs for suspicious activity.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-20288.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20288 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-20288
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-20288 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-20288 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 05, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-20288', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-05T17:35:01.724490Z'} -
New CVE Received by [email protected]
Aug. 05, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Cisco', 'product': 'Cisco Unified Computing System (Standalone)', 'versions': [{'status': 'affected', 'version': '4.0(2g)'}, {'status': 'affected', 'version': '3.1(2i)'}, {'status': 'affected', 'version': '3.1(1d)'}, {'status': 'affected', 'version': '4.0(4i)'}, {'status': 'affected', 'version': '4.1(1c)'}, {'status': 'affected', 'version': '4.0(2c)'}, {'status': 'affected', 'version': '4.0(1e)'}, {'status': 'affected', 'version': '4.0(2h)'}, {'status': 'affected', 'version': '4.0(4h)'}, {'status': 'affected', 'version': '4.0(1h)'}, {'status': 'affected', 'version': '4.0(2l)'}, {'status': 'affected', 'version': '3.1(3g)'}, {'status': 'affected', 'version': '4.0(1.240)'}, {'status': 'affected', 'version': '4.0(2f)'}, {'status': 'affected', 'version': '4.0(1g)'}, {'status': 'affected', 'version': '4.0(2i)'}, {'status': 'affected', 'version': '3.1(3i)'}, {'status': 'affected', 'version': '4.0(4d)'}, {'status': 'affected', 'version': '4.1(1d)'}, {'status': 'affected', 'version': '3.1(3c)'}, {'status': 'affected', 'version': '4.0(4k)'}, {'status': 'affected', 'version': '3.1(2d)'}, {'status': 'affected', 'version': '3.1(3a)'}, {'status': 'affected', 'version': '3.1(3j)'}, {'status': 'affected', 'version': '4.0(2d)'}, {'status': 'affected', 'version': '4.1(1f)'}, {'status': 'affected', 'version': '4.0(4j)'}, {'status': 'affected', 'version': '4.0(2m)'}, {'status': 'affected', 'version': '4.0(2k)'}, {'status': 'affected', 'version': '4.0(1c)'}, {'status': 'affected', 'version': '4.0(4f)'}, {'status': 'affected', 'version': '4.0(4c)'}, {'status': 'affected', 'version': '3.1(3d)'}, {'status': 'affected', 'version': '3.1(2g)'}, {'status': 'affected', 'version': '3.1(2c)'}, {'status': 'affected', 'version': '4.0(1d)'}, {'status': 'affected', 'version': '3.1(2e)'}, {'status': 'affected', 'version': '4.0(1a)'}, {'status': 'affected', 'version': '4.0(1b)'}, {'status': 'affected', 'version': '3.1(3b)'}, {'status': 'affected', 'version': '4.0(4b)'}, {'status': 'affected', 'version': '3.1(2b)'}, {'status': 'affected', 'version': '4.0(4e)'}, {'status': 'affected', 'version': '3.1(3h)'}, {'status': 'affected', 'version': '4.0(4l)'}, {'status': 'affected', 'version': '4.1(1g)'}, {'status': 'affected', 'version': '4.1(2a)'}, {'status': 'affected', 'version': '4.0(2n)'}, {'status': 'affected', 'version': '4.1(1h)'}, {'status': 'affected', 'version': '3.1(3k)'}, {'status': 'affected', 'version': '4.1(2b)'}, {'status': 'affected', 'version': '4.0(2o)'}, {'status': 'affected', 'version': '4.0(4m)'}, {'status': 'affected', 'version': '4.1(2d)'}, {'status': 'affected', 'version': '4.1(3b)'}, {'status': 'affected', 'version': '4.0(2p)'}, {'status': 'affected', 'version': '4.1(2e)'}, {'status': 'affected', 'version': '4.1(2f)'}, {'status': 'affected', 'version': '4.0(4n)'}, {'status': 'affected', 'version': '4.0(2q)'}, {'status': 'affected', 'version': '4.1(3c)'}, {'status': 'affected', 'version': '4.0(2r)'}, {'status': 'affected', 'version': '4.1(3d)'}, {'status': 'affected', 'version': '4.1(2g)'}, {'status': 'affected', 'version': '4.1(2h)'}, {'status': 'affected', 'version': '4.1(3g)'}, {'status': 'affected', 'version': '4.1(3f)'}, {'status': 'affected', 'version': '4.1(2j)'}, {'status': 'affected', 'version': '4.1(2k)'}, {'status': 'affected', 'version': '4.1(3h)'}, {'status': 'affected', 'version': '4.2(2a)'}, {'status': 'affected', 'version': '4.1(3i)'}, {'status': 'affected', 'version': '4.2(2f)'}, {'status': 'affected', 'version': '4.2(2g)'}, {'status': 'affected', 'version': '4.2(3b)'}, {'status': 'affected', 'version': '4.1(3l)'}, {'status': 'affected', 'version': '4.2(3d)'}, {'status': 'affected', 'version': '4.3(1.230097)'}, {'status': 'affected', 'version': '4.2(1e)'}, {'status': 'affected', 'version': '4.2(1b)'}, {'status': 'affected', 'version': '4.2(1j)'}, {'status': 'affected', 'version': '4.2(1i)'}, {'status': 'affected', 'version': '4.2(1f)'}, {'status': 'affected', 'version': '4.2(1a)'}, {'status': 'affected', 'version': '4.2(1c)'}, {'status': 'affected', 'version': '4.2(1g)'}, {'status': 'affected', 'version': '4.3(1.230124)'}, {'status': 'affected', 'version': '4.1(2l)'}, {'status': 'affected', 'version': '4.2(3e)'}, {'status': 'affected', 'version': '4.3(1.230138)'}, {'status': 'affected', 'version': '4.2(3g)'}, {'status': 'affected', 'version': '4.3(2.230207)'}, {'status': 'affected', 'version': '4.2(3h)'}, {'status': 'affected', 'version': '4.2(3i)'}, {'status': 'affected', 'version': '4.3(2.230270)'}, {'status': 'affected', 'version': '4.1(3m)'}, {'status': 'affected', 'version': '4.1(2m)'}, {'status': 'affected', 'version': '4.3(2.240002)'}, {'status': 'affected', 'version': '4.3(3.240022)'}, {'status': 'affected', 'version': '4.2(3j)'}, {'status': 'affected', 'version': '4.1(3n)'}, {'status': 'affected', 'version': '4.3(2.240009)'}, {'status': 'affected', 'version': '4.3(3.240041)'}, {'status': 'affected', 'version': '4.2(3k)'}, {'status': 'affected', 'version': '4.3(3.240043)'}, {'status': 'affected', 'version': '4.3(4.240142)'}, {'status': 'affected', 'version': '4.3(2.240037)'}, {'status': 'affected', 'version': '4.3(2.240053)'}, {'status': 'affected', 'version': '4.3(4.240152)'}, {'status': 'affected', 'version': '4.2(3l)'}, {'status': 'affected', 'version': '4.3(2.240077)'}, {'status': 'affected', 'version': '4.3(4.242028)'}, {'status': 'affected', 'version': '4.3(4.241063)'}, {'status': 'affected', 'version': '4.3(4.242038)'}, {'status': 'affected', 'version': '4.2(3m)'}, {'status': 'affected', 'version': '4.3(2.240090)'}, {'status': 'affected', 'version': '4.3(5.240021)'}, {'status': 'affected', 'version': '4.3(2.240107)'}, {'status': 'affected', 'version': '4.3(4.242066)'}, {'status': 'affected', 'version': '4.2(3n)'}, {'status': 'affected', 'version': '4.3(5.250001)'}, {'status': 'affected', 'version': '4.2(3o)'}, {'status': 'affected', 'version': '4.3(2.250016)'}, {'status': 'affected', 'version': '4.3(2.250021)'}, {'status': 'affected', 'version': '4.3(5.250030)'}, {'status': 'affected', 'version': '4.3(2.250022)'}, {'status': 'affected', 'version': '4.3(6.250039)'}, {'status': 'affected', 'version': '4.3(6.250040)'}, {'status': 'affected', 'version': '4.3(5.250033)'}, {'status': 'affected', 'version': '4.3(6.250044)'}, {'status': 'affected', 'version': '4.3(6.250053)'}, {'status': 'affected', 'version': '4.3(2.250037)'}, {'status': 'affected', 'version': '4.3(2.250045)'}, {'status': 'affected', 'version': '4.3(4.252001)'}, {'status': 'affected', 'version': '4.3(4.252002)'}, {'status': 'affected', 'version': '6.0(1.250127)'}, {'status': 'affected', 'version': '4.2(3p)'}, {'status': 'affected', 'version': '6.0(1.250131)'}, {'status': 'affected', 'version': '4.3(6.250101)'}, {'status': 'affected', 'version': '6.0(1.250174)'}, {'status': 'affected', 'version': '4.3(6.250117)'}, {'status': 'affected', 'version': '4.3(5.250043)'}, {'status': 'affected', 'version': '4.3(5.250045)'}, {'status': 'affected', 'version': '4.3(6.250060)'}, {'status': 'affected', 'version': '6.0(1.250130)'}, {'status': 'affected', 'version': '4.3(4.241014)'}, {'status': 'affected', 'version': '4.3(2.250063)'}, {'status': 'affected', 'version': '6.0(1.250192)'}, {'status': 'affected', 'version': '4.3(6.260003)'}, {'status': 'affected', 'version': '6.0(1.250194)'}, {'status': 'affected', 'version': '4.3(6.260017)'}, {'status': 'affected', 'version': '4.3(2.260007)'}, {'status': 'affected', 'version': '6.0(2.260044)'}, {'status': 'affected', 'version': '6.0(2.260069)'}, {'status': 'affected', 'version': '4.3(6.260033)'}, {'status': 'affected', 'version': '4.2(3q)'}], 'defaultStatus': 'unknown'}, {'vendor': 'Cisco', 'product': 'Cisco Unified Computing System E-Series Software (UCSE)', 'versions': [{'status': 'affected', 'version': '3.2.7'}, {'status': 'affected', 'version': '3.2.6'}, {'status': 'affected', 'version': '3.2.4'}, {'status': 'affected', 'version': '3.2.10'}, {'status': 'affected', 'version': '3.2.2'}, {'status': 'affected', 'version': '3.2.3'}, {'status': 'affected', 'version': '3.2.1'}, {'status': 'affected', 'version': '3.2.11.1'}, {'status': 'affected', 'version': '3.2.8'}, {'status': 'affected', 'version': '3.1.1'}, {'status': 'affected', 'version': '3.1.2'}, {'status': 'affected', 'version': '3.1.4'}, {'status': 'affected', 'version': '3.1.3'}, {'status': 'affected', 'version': '3.1.5'}, {'status': 'affected', 'version': '3.1.0'}, {'status': 'affected', 'version': '3.2.11.3'}, {'status': 'affected', 'version': '3.2.11.5'}, {'status': 'affected', 'version': '3.2.12.2'}, {'status': 'affected', 'version': '3.2.13.6'}, {'status': 'affected', 'version': '3.2.14'}, {'status': 'affected', 'version': '4.11.1'}, {'status': 'affected', 'version': '3.2.15'}, {'status': 'affected', 'version': '4.12.1'}, {'status': 'affected', 'version': '3.2.15.3'}, {'status': 'affected', 'version': '4.12.2'}, {'status': 'affected', 'version': '3.2.16.1'}, {'status': 'affected', 'version': '4.15.2'}, {'status': 'affected', 'version': '3.2.17.1'}, {'status': 'affected', 'version': '4.15.3'}], 'defaultStatus': 'unknown'}] Added Description A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with Admin privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. Cisco has assigned this vulnerability a SIR of High rather than Medium as the score indicates because additional security implications could occur when the attacker becomes root. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-146 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.