Cyber Resilience

CVE-2024-20392

Medium

Published: 15 May 2024

Published
15 May 2024
Modified
06 August 2025
KEV Added
Patch
CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0031 54.4th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-20392 is a medium-severity HTTP Request/Response Splitting (CWE-113) vulnerability in Cisco Asyncos. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 45.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A vulnerability in the web-based management API of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to insufficient input validation of some parameters…

more

that are passed to the web-based management API of the affected system. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to perform cross-site scripting (XSS) attacks, resulting in the execution of arbitrary script code in the browser of the targeted user, or could allow the attacker to access sensitive, browser-based information.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cisco
asyncos
11.0.3-238, 11.1.0-069, 11.1.0-128, 12.0.0-419, 12.1.0-071

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References