CVE-2026-20097: cisco cisco unified computing system (standalone) Out-of-bounds Write
Vulnerability summary
CVE-2026-20097 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in cisco cisco unified computing system (standalone). EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.6% of scored vulnerabilities.
Timeline
- 01-04-2026PublishedVulnerability first disclosed.
- 22-04-2026Last modifiedVulnerability information updated.
Description
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with admin-level privileges to execute arbitrary code as the root user. This vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code 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- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
0.00 pp
From 0.39% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Cisco2 products
- 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(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(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(3.240043) | 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(6.250040) | 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(6.250039) | 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)
- 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\(2l\) | 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\(4k\) | 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\(3h\) | 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\(3l\) | 4.2\(3m\) | 4.2\(3n\) | 4.2\(3o\) | 4.2\(3p\) | 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\(3.240022\) | 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\(6.260003\) | 6.0\(1.250127\) | 6.0\(1.250130\) | 6.0\(1.250131\) | 6.0\(1.250174\) | 6.0\(1.250192\) | 6.0\(1.250194\)
1 vendor · 2 products