🔐 CVE Alert

CVE-2026-20288

MEDIUM 6.5

Cisco IMC Remote Code Execution Vulnerability Remote Code Execution Vulnerability

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-146
Vendor cisco
Product cisco enterprise nfv infrastructure software
Ecosystems
Industries
NetworkingTelecommunications
Published Aug 5, 2026
Last Updated Sep 16, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

Cisco / Cisco Enterprise NFV Infrastructure Software
4.1.1 3.9.1 3.5.2 3.12.2 3.6.2 3.9.2 3.11.3 3.11.1 3.5.1 3.3.1 3.10.2 3.12.1b 3.4.1 3.12.1a 3.6.3 3.8.1 3.11.2 3.12.1 3.12.3 3.10.1 3.6.1 3.10.3 3.7.1 4.1.2 4.2.1 4.2.2 4.4.1 4.4.2 4.5.1 4.4.3 4.6.1 4.7.1 4.6.2-FC2 4.6.2 4.8.1 4.8.2 4.9.1 4.6.3 4.9.2 4.10.1 4.9.3 4.11.1 4.9.4 4.12.1 4.6.4 4.12.2 4.13.1 4.9.5 4.12.3 4.14.1 4.6.3-FC4 4.9.4-FC3 4.12.4 4.15.1 4.9.6 4.15.2 4.12.5 4.15.3 4.15.4 4.12.6 4.15.5 4.12.7 4.18.3 26.1.1 4.18.4 4.16.1 4.18.2a 4.18.1 4.18.2
Cisco / Cisco Unified Computing System (Standalone)
4.0(2g) 3.1(2i) 3.1(1d) 4.0(4i) 4.1(1c) 4.0(2c) 4.0(1e) 4.0(2h) 4.0(4h) 4.0(1h) 4.0(2l) 3.1(3g) 4.0(1.240) 4.0(2f) 4.0(1g) 4.0(2i) 3.1(3i) 4.0(4d) 4.1(1d) 3.1(3c) 4.0(4k) 3.1(2d) 3.1(3a) 3.1(3j) 4.0(2d) 4.1(1f) 4.0(4j) 4.0(2m) 4.0(2k) 4.0(1c) 4.0(4f) 4.0(4c) 3.1(3d) 3.1(2g) 3.1(2c) 4.0(1d) 3.1(2e) 4.0(1a) 4.0(1b) 3.1(3b) 4.0(4b) 3.1(2b) 4.0(4e) 3.1(3h) 4.0(4l) 4.1(1g) 4.1(2a) 4.0(2n) 4.1(1h) 3.1(3k) 4.1(2b) 4.0(2o) 4.0(4m) 4.1(2d) 4.1(3b) 4.0(2p) 4.1(2e) 4.1(2f) 4.0(4n) 4.0(2q) 4.1(3c) 4.0(2r) 4.1(3d) 4.1(2g) 4.1(2h) 4.1(3g) 4.1(3f) 4.1(2j) 4.1(2k) 4.1(3h) 4.2(2a) 4.1(3i) 4.2(2f) 4.2(2g) 4.2(3b) 4.1(3l) 4.2(3d) 4.3(1.230097) 4.2(1e) 4.2(1b) 4.2(1j) 4.2(1i) 4.2(1f) 4.2(1a) 4.2(1c) 4.2(1g) 4.3(1.230124) 4.1(2l) 4.2(3e) 4.3(1.230138) 4.2(3g) 4.3(2.230207) 4.2(3h) 4.2(3i) 4.3(2.230270) 4.1(3m) 4.1(2m) 4.3(2.240002) 4.3(3.240022) 4.2(3j) 4.1(3n) 4.3(2.240009) 4.3(3.240041) 4.2(3k) 4.3(3.240043) 4.3(4.240142) 4.3(2.240037) 4.3(2.240053) 4.3(4.240152) 4.2(3l) 4.3(2.240077) 4.3(4.242028) 4.3(4.241063) 4.3(4.242038) 4.2(3m) 4.3(2.240090) 4.3(5.240021) 4.3(2.240107) 4.3(4.242066) 4.2(3n) 4.3(5.250001) 4.2(3o) 4.3(2.250016) 4.3(2.250021) 4.3(5.250030) 4.3(2.250022) 4.3(6.250039) 4.3(6.250040) 4.3(5.250033) 4.3(6.250044) 4.3(6.250053) 4.3(2.250037) 4.3(2.250045) 4.3(4.252001) 4.3(4.252002) 6.0(1.250127) 4.2(3p) 6.0(1.250131) 4.3(6.250101) 6.0(1.250174) 4.3(6.250117) 4.3(5.250043) 4.3(5.250045) 4.3(6.250060) 6.0(1.250130) 4.3(4.241014) 4.3(2.250063) 6.0(1.250192) 4.3(6.260003) 6.0(1.250194) 4.3(6.260017) 4.3(2.260007) 6.0(2.260044) 6.0(2.260069) 4.3(6.260033) 4.2(3q)
Cisco / Cisco Unified Computing System E-Series Software (UCSE)
3.2.7 3.2.6 3.2.4 3.2.10 3.2.2 3.2.3 3.2.1 3.2.11.1 3.2.8 3.1.1 3.1.2 3.1.4 3.1.3 3.1.5 3.1.0 3.2.11.3 3.2.11.5 3.2.12.2 3.2.13.6 3.2.14 4.11.1 3.2.15 4.12.1 3.2.15.3 4.12.2 3.2.16.1 4.15.2 3.2.17.1 4.15.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗
sec.cloudapps.cisco.com: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU