CVE-2026-20172
Vulnérabilité moyenne dans Cisco Enterprise Chat and Email (Cisco)
Description
A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent. This vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.
Gravité et risque d'exploitation
CVE-2026-20172 obtient un score CVSS de 4.3/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.13 %, ce qui la place devant 2.0 % des CVE référencées.
Que faire ?
- Vérifiez si Cisco Enterprise Chat and Email (versions 12.6(1)_ES7_ET1, 12.6(1)_ES9_ET1, 12.6(1)_ES4, 11.6(1)_ES2, 12.5(1)_ES5_ET1, 12.6(1)_ES5_ET2, 12.5(1)_ES8, 12.6(1)_ES8_ET1, 12.6(1)_ES3_ET3, 12.6_ES3_ET2, 12.6(1)_ES6_ET1, 12.5(1)_ES1, 12.5(1)_ES6, 12.0(1)_ES6_ET1, 12.0(1)_ES2, 12.0(1)_ES7_ET1, 11.6(1)_ES12_ET1, 12.6(1)_ET1, 12.5(1)_ES5, 12.6(1)_ES1_ET1, 12.6(1)_ES8_ET2, 12.5(1)_ES3_ET1, 12.6(1), 12.6(1)_ES5_ET1, 11.6(1)_ES7, 12.5(1)_ES8_ET1, 12.6(1)_ES5, 12.5(1)_ES3_ET3, 12.5(1)_ES3_ET2, 12.6(1)_ES2_ET5, 12.0(1)_ES4, 12.6(1)_ES2, 12.6_ES2_ET3, 12.6(1)_ES9, 15.0(1)ES202508, 11.6(1), 12.0(1)_ES7, 11.6(1)_ES3, 11.6(1)_ES11, 12.6(1)_ES12_ET1, 12.5(1)_ET1, 11.6(1)_ES8, 12.6(1)_ES4_ET2, 12.6(1)_ES9_ET2, 15.0(1)ES202511_ET1, 12.5(1)_ES4_ET1, 12.6(1)_ES3, 12.5(1)_ES5_ET2, 12.5(1), 12.6_ES2_ET2, 12.6(1)_ES12, 12.5(1)_ES2, 12.6(1)_ES6_ET2, 12.6(1)_ES11_ET2, 11.6(1)_ES4, 12.5(1)_ES10, 12.5(1)_ES7, 11.6(1)_ES6, 12.6(1)_ES10_ET1, 12.6(1)_ES11, 12.6(1)_ES5_ET3, 12.6(1)_ES10, 11.6(1)_ES10, 12.6(1)_ES1_ET2, 12.5(1)_ES6_ET1, 12.6_ES2_ET4, 12.6(1)_ES11_ET1, 12.0(1), 12.0(1)_ES6_ET3, 11.6(1)_ES12, 12.6(1)_ET2, 15.0(1)_ET1, 12.5(1)_ES4_ET2, 12.0(1)_ES6_ET2, 12.0(1)_ES3, 12.6(1)_ES8, 12.0(1)_ES5, 12.6(1)_ES9_ET3, 15.0(1), 11.6(1)_ES9, 12.5(1)_ES9, 12.6_ES2_ET1, 11.6(1)_ES9a, 12.0(1)_ES5a, 12.6_ES3_ET1, 11.5(1), 12.6(1)_ES6, 12.6(1)_ES4_ET1, 12.6(1)_ES1, 12.5(1)_ES3, 12.6(1)_ES6_ET3, 12.0(1)_ES1, 11.6(1)_ES5, 12.5(1)_ES4, 12.0(1)_ES6, 12.5(1)_ES7_ET1, 15.0(1)ES202511, 12.6(1)_ES7, 12.6(1)_ET3) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.