CVE-2026-20288: cisco cisco enterprise nfv infrastructure software

CVSS: 6.5v3.1MediumAnalyzed

Published 05-08-2026Last modified 16-09-2026

Vulnerability summary

CVE-2026-20288 is a medium (CVSS 6.5) vulnerability in cisco cisco enterprise nfv infrastructure software. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.4% of scored vulnerabilities.

Overall risk

26/100

0100

Medium · default modelHow is this calculated?

CVSS score

6.5/10

010

Medium · v3.1 (CVE.org)

EPSS score

0.64%

0%100%

Low · +0.25 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Timeline

05-08-2026
PublishedVulnerability first disclosed.
16-09-2026
Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

v3.16.5

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

+0.25 pp

From 0.38% on 18-09-2026

18-09-202618-10-2026

EPSS score

0.64%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-146Improper Neutralization of Expression/Command DelimitersThe product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as expression or command delimiters when they are sent to a downstream component.

Affected systems

Cisco5 products

cisco enterprise nfv infrastructure software4.1.1 | 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 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
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)
unified_computing_system3.1\(1d\) | 3.1\(2b\) | 3.1\(2c\) | 3.1\(2d\) | 3.1\(2e\) | 3.1\(2g\) | 3.1\(2i\) | 3.1\(3a\) | 3.1\(3b\) | 3.1\(3c\) | 3.1\(3d\) | 3.1\(3g\) | 3.1\(3h\) | 3.1\(3i\) | 3.1\(3j\) | 3.1\(3k\) | 4.0\(1.240\) | 4.0\(1a\) | 4.0\(1b\) | 4.0\(1c\) | 4.0\(1d\) | 4.0\(1e\) | 4.0\(1g\) | 4.0\(1h\) | 4.0\(2c\) | 4.0\(2d\) | 4.0\(2f\) | 4.0\(2g\) | 4.0\(2h\) | 4.0\(2i\) | 4.0\(2k\) | 4.0\(2l\) | 4.0\(2m\) | 4.0\(2n\) | 4.0\(2o\) | 4.0\(2p\) | 4.0\(2q\) | 4.0\(2r\) | 4.0\(4b\) | 4.0\(4c\) | 4.0\(4d\) | 4.0\(4e\) | 4.0\(4f\) | 4.0\(4h\) | 4.0\(4i\) | 4.0\(4j\) | 4.0\(4k\) | 4.0\(4l\) | 4.0\(4m\) | 4.0\(4n\) | 4.1\(1c\) | 4.1\(1d\) | 4.1\(1f\) | 4.1\(1g\) | 4.1\(1h\) | 4.1\(2a\) | 4.1\(2b\) | 4.1\(2d\) | 4.1\(2e\) | 4.1\(2f\) | 4.1\(2g\) | 4.1\(2h\) | 4.1\(2j\) | 4.1\(2k\) | 4.1\(2l\) | 4.1\(2m\) | 4.1\(3b\) | 4.1\(3c\) | 4.1\(3d\) | 4.1\(3f\) | 4.1\(3g\) | 4.1\(3h\) | 4.1\(3i\) | 4.1\(3l\) | 4.1\(3m\) | 4.1\(3n\) | 4.2\(1a\) | 4.2\(1b\) | 4.2\(1c\) | 4.2\(1e\) | 4.2\(1f\) | 4.2\(1g\) | 4.2\(1i\) | 4.2\(1j\) | 4.2\(2a\) | 4.2\(2f\) | 4.2\(2g\) | 4.2\(3b\) | 4.2\(3d\) | 4.2\(3e\) | 4.2\(3g\) | 4.2\(3h\) | 4.2\(3i\) | 4.2\(3j\) | 4.2\(3k\) | 4.2\(3l\) | 4.2\(3m\) | 4.2\(3n\) | 4.2\(3o\) | 4.2\(3p\) | 4.2\(3q\) | 4.3\(1.230097\) | 4.3\(1.230124\) | 4.3\(1.230138\) | 4.3\(2.230207\) | 4.3\(2.230270\) | 4.3\(2.240002\) | 4.3\(2.240009\) | 4.3\(2.240037\) | 4.3\(2.240053\) | 4.3\(2.240077\) | 4.3\(2.240090\) | 4.3\(2.240107\) | 4.3\(2.250016\) | 4.3\(2.250021\) | 4.3\(2.250022\) | 4.3\(2.250037\) | 4.3\(2.250045\) | 4.3\(2.250063\) | 4.3\(2.260007\) | 4.3\(3.240022\) | 4.3\(3.240041\) | 4.3\(3.240043\) | 4.3\(4.240142\) | 4.3\(4.240152\) | 4.3\(4.241014\) | 4.3\(4.241063\) | 4.3\(4.242028\) | 4.3\(4.242038\) | 4.3\(4.242066\) | 4.3\(4.252001\) | 4.3\(4.252002\) | 4.3\(5.240021\) | 4.3\(5.250001\) | 4.3\(5.250030\) | 4.3\(5.250033\) | 4.3\(5.250043\) | 4.3\(5.250045\) | 4.3\(6.250039\) | 4.3\(6.250040\) | 4.3\(6.250044\) | 4.3\(6.250053\) | 4.3\(6.250060\) | 4.3\(6.250101\) | 4.3\(6.250117\) | 4.3\(6.260003\) | 4.3\(6.260017\) | 4.3\(6.260033\) | 6.0\(1.250127\) | 6.0\(1.250130\) | 6.0\(1.250131\) | 6.0\(1.250174\) | 6.0\(1.250192\) | 6.0\(1.250194\) | 6.0\(2.260044\) | 6.0\(2.260069\)
unified_computing_system_e-series_software3.1.0 | 3.1.1 | 3.1.2 | 3.1.3 | 3.1.4 | 3.1.5 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.6 | 3.2.7 | 3.2.8 | 3.2.10 | 3.2.11.1 | 3.2.11.3 | 3.2.11.5 | 3.2.12.2 | 3.2.13.6 | 3.2.14 | 3.2.15 | 3.2.15.3 | 3.2.16.1 | 3.2.17.1 | 4.11.1 | 4.12.1 | 4.12.2 | 4.15.2 | 4.15.3

1 vendor · 5 products

References

1 links

sec.cloudapps.cisco.com/security/…Vendor Advisory

Vulnerability summary

Timeline

Description

CVSS metrics

EPSS trend

Known exploited

Public exploits

Weaknesses

Affected systems

References

Related vulnerabilities