Vulnerability-Lookup

BDU:2025-16120 (CVE-2025-20393)

Vulnerability from fstec – Published: 2025-12-19 – Updated: 2025-12-19 – View on bdu.fstec.ru Exploit exists Yes No remediation information

Title

Уязвимость функции Spam Quarantine операционной системы Cisco AsyncOS средств защиты Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, позволяющая нарушителю выполнить произвольный код с правами root

Summary

Уязвимость функции Spam Quarantine операционной системы Cisco AsyncOS средств защиты Cisco Secure Email and Web Manager, Cisco Secure Email Gateway связана с недостатками механизма проверки входных данных. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, выполнить произвольный код с правами root

Severity

10.0 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:C/I:C/A:C

10.0 (Critical) CVSS 3.1


                      
                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource manipulation

Incidents

Yes

Remediation

Being clarified

CWE

CWE-20 - Недостаточная проверка вводимых данных
CWE-30 - Обход пути: ‘\\dir\\..\\filename’

Aliases

CVE-2025-20393

References

1 reference

URL
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…

Impacted products

5 products from 2 vendors

Vendors

Cisco Systems, Inc.

Products

AsyncOS, Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, Secure Email and Web Manager Virtual Appliance, Secure Email Gateway Virtual Appliance

Versions

до 16.0.3-044 включительно (AsyncOS), - (Cisco Secure Email and Web Manager), - (Cisco Secure Email Gateway), - (Secure Email and Web Manager Virtual Appliance), - (Secure Email Gateway Virtual Appliance)

Product types

Operating system, Application software, Security software, Virtualization software

Platforms

Cisco Systems, Inc. AsyncOS до 16.0.3-044 включительно

Mitigations

Компенсирующие меры: - использование разных сетевых портов для обработки почтовых сообщений и администрирования уязвимого программного обеспечения; - ограничение возможности доступа к уязвимому программному обеспечению по протоколу HTTP; - настройка механизма аутентификации по протоколам SAML или LDAP; - использование средств межсетевого экранирования уровня веб-приложений (WAF) для фильтрации сетевого трафика; - использование SIEM-систем для отслеживания попыток эксплуатации уязвимости; - использование виртуальных частных сетей для организации удаленного доступа (VPN); - ограничение доступа к устройству из внешних сетей (Интернет).

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Cisco Systems, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 16.0.3-044 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (AsyncOS), - (Cisco Secure Email and Web Manager), - (Cisco Secure Email Gateway), - (Secure Email and Web Manager Virtual Appliance), - (Secure Email Gateway Virtual Appliance)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u041a\u043e\u043c\u043f\u0435\u043d\u0441\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0440\u044b:\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0430\u0437\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043f\u043e\u0440\u0442\u043e\u0432 \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439 \u0438 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f;\n- \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u043c\u0443 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u043c\u0443 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044e \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0443 HTTP;\n- \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c SAML \u0438\u043b\u0438 LDAP;\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043c\u0435\u0436\u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u044d\u043a\u0440\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0443\u0440\u043e\u0432\u043d\u044f \u0432\u0435\u0431-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 (WAF) \u0434\u043b\u044f \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u0442\u0440\u0430\u0444\u0438\u043a\u0430;\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 SIEM-\u0441\u0438\u0441\u0442\u0435\u043c \u0434\u043b\u044f \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u043f\u044b\u0442\u043e\u043a \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438;\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u0447\u0430\u0441\u0442\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0439 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430 (VPN);\n- \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0443 \u0438\u0437 \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u0441\u0435\u0442\u0435\u0439 (\u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442).",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "17.12.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "19.12.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "19.12.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-16120",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2025-20393",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "AsyncOS, Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, Secure Email and Web Manager Virtual Appliance, Secure Email Gateway Virtual Appliance",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Cisco Systems, Inc. AsyncOS \u0434\u043e 16.0.3-044 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 Spam Quarantine \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Cisco AsyncOS \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u0437\u0430\u0449\u0438\u0442\u044b Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0432\u0432\u043e\u0434\u0438\u043c\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 (CWE-20), \u041e\u0431\u0445\u043e\u0434 \u043f\u0443\u0442\u0438: \u2018\\\\dir\\\\..\\\\filename\u2019 (CWE-30)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 Spam Quarantine \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Cisco AsyncOS \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u0437\u0430\u0449\u0438\u0442\u044b Cisco Secure Email and Web Manager, Cisco Secure Email Gateway \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043a\u0430\u043c\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sma-attack-N9bf4",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u041f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b, \u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438/\u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-20, CWE-30",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 10)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 10)"
}

CVE-2025-20393 (GCVE-0-2025-20393)

Vulnerability from cvelistv5 – Published: 2025-12-17 16:47 – Updated: 2026-10-07 19:22

Title

Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability

Summary

A vulnerability in the Spam Quarantine feature of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to execute arbitrary system commands on an affected device with root privileges. This vulnerability is due to insufficient validation of HTTP requests by the Spam Quarantine feature. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-18 04:55 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 431 records in the last 180 days details

References

2 references

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

2 products

Vendor	Product	Version
Cisco	Cisco Secure Email	Affected: 14.0.0-698 Affected: 13.5.1-277 Affected: 13.0.0-392 Affected: 14.2.0-620 Affected: 13.0.5-007 Affected: 13.5.4-038 Affected: 14.2.1-020 Affected: 14.3.0-032 Affected: 15.0.0-104 Affected: 15.0.1-030 Affected: 15.5.0-048 Affected: 15.5.1-055 Affected: 15.5.2-018 Affected: 16.0.0-050 Affected: 15.0.3-002 Affected: 16.0.0-054 Affected: 15.5.3-022 Affected: 16.0.1-017
Cisco	Cisco Secure Email and Web Manager	Affected: 13.6.2-023 Affected: 13.6.2-078 Affected: 13.0.0-249 Affected: 13.0.0-277 Affected: 13.8.1-052 Affected: 13.8.1-068 Affected: 13.8.1-074 Affected: 14.0.0-404 Affected: 12.8.1-002 Affected: 14.1.0-227 Affected: 13.6.1-201 Affected: 14.2.0-203 Affected: 14.2.0-212 Affected: 12.8.1-021 Affected: 13.8.1-108 Affected: 14.2.0-224 Affected: 14.3.0-120 Affected: 15.0.0-334 Affected: 15.5.1-024 Affected: 15.5.1-029 Affected: 15.5.2-005 Affected: 16.0.0-195 Affected: 15.5.3-017 Affected: 16.0.1-010 Affected: 15.0.1-035 Affected: 16.0.2-088

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-20393",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-18T04:55:22.327258Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2025-12-17",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-20393"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T19:22:07.139Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-20393"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Secure Email",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "14.0.0-698"
            },
            {
              "status": "affected",
              "version": "13.5.1-277"
            },
            {
              "status": "affected",
              "version": "13.0.0-392"
            },
            {
              "status": "affected",
              "version": "14.2.0-620"
            },
            {
              "status": "affected",
              "version": "13.0.5-007"
            },
            {
              "status": "affected",
              "version": "13.5.4-038"
            },
            {
              "status": "affected",
              "version": "14.2.1-020"
            },
            {
              "status": "affected",
              "version": "14.3.0-032"
            },
            {
              "status": "affected",
              "version": "15.0.0-104"
            },
            {
              "status": "affected",
              "version": "15.0.1-030"
            },
            {
              "status": "affected",
              "version": "15.5.0-048"
            },
            {
              "status": "affected",
              "version": "15.5.1-055"
            },
            {
              "status": "affected",
              "version": "15.5.2-018"
            },
            {
              "status": "affected",
              "version": "16.0.0-050"
            },
            {
              "status": "affected",
              "version": "15.0.3-002"
            },
            {
              "status": "affected",
              "version": "16.0.0-054"
            },
            {
              "status": "affected",
              "version": "15.5.3-022"
            },
            {
              "status": "affected",
              "version": "16.0.1-017"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Cisco Secure Email and Web Manager",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "13.6.2-023"
            },
            {
              "status": "affected",
              "version": "13.6.2-078"
            },
            {
              "status": "affected",
              "version": "13.0.0-249"
            },
            {
              "status": "affected",
              "version": "13.0.0-277"
            },
            {
              "status": "affected",
              "version": "13.8.1-052"
            },
            {
              "status": "affected",
              "version": "13.8.1-068"
            },
            {
              "status": "affected",
              "version": "13.8.1-074"
            },
            {
              "status": "affected",
              "version": "14.0.0-404"
            },
            {
              "status": "affected",
              "version": "12.8.1-002"
            },
            {
              "status": "affected",
              "version": "14.1.0-227"
            },
            {
              "status": "affected",
              "version": "13.6.1-201"
            },
            {
              "status": "affected",
              "version": "14.2.0-203"
            },
            {
              "status": "affected",
              "version": "14.2.0-212"
            },
            {
              "status": "affected",
              "version": "12.8.1-021"
            },
            {
              "status": "affected",
              "version": "13.8.1-108"
            },
            {
              "status": "affected",
              "version": "14.2.0-224"
            },
            {
              "status": "affected",
              "version": "14.3.0-120"
            },
            {
              "status": "affected",
              "version": "15.0.0-334"
            },
            {
              "status": "affected",
              "version": "15.5.1-024"
            },
            {
              "status": "affected",
              "version": "15.5.1-029"
            },
            {
              "status": "affected",
              "version": "15.5.2-005"
            },
            {
              "status": "affected",
              "version": "16.0.0-195"
            },
            {
              "status": "affected",
              "version": "15.5.3-017"
            },
            {
              "status": "affected",
              "version": "16.0.1-010"
            },
            {
              "status": "affected",
              "version": "15.0.1-035"
            },
            {
              "status": "affected",
              "version": "16.0.2-088"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Spam Quarantine feature of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to execute arbitrary system commands on an affected device with root privileges.\r\n\r\nThis vulnerability is due to insufficient validation of HTTP requests by the Spam Quarantine feature. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with\u0026nbsp;root privileges."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "In December 2025, the Cisco Product Security Incident Response Team (PSIRT) became aware of potentially malicious activity that targets Cisco Secure Email Gateway and Cisco Secure Email and Web Manager appliances."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "Improper Input Validation",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-15T16:32:03.740Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-sma-attack-N9bf4",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sma-attack-N9bf4"
        }
      ],
      "source": {
        "advisory": "cisco-sa-sma-attack-N9bf4",
        "defects": [
          "CSCws36549"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2025-20393",
    "datePublished": "2025-12-17T16:47:13.128Z",
    "dateReserved": "2024-10-10T19:15:13.266Z",
    "dateUpdated": "2026-10-07T19:22:07.139Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted