CVE-2025-20185 | Cisco Secure Email and Web Manager, Secure Email Gateway, and Secure Web Appliance Privilege Escalation Vulnerability

A vulnerability in the implementation of the remote access functionality of Cisco AsyncOS Software for Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, and Cisco Secure Web Appliance could allow an authenticated, local attacker to elevate privileges to root. The attacker must authenticate with valid administrator credentials. This vulnerability is due to an architectural flaw in the password generation algorithm for the remote access functionality. An attacker could exploit this vulnerability by generating a temporary password for the service account. A successful exploit could allow the attacker to execute arbitrary commands as root and access the underlying operating system. Note: The Security Impact Rating (SIR) for this vulnerability is Medium due to the unrestricted scope of information that is accessible to an attacker.

Published: 2025-02-05 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-20185 is rated Low Risk (16.1/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.17%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-20185

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.04% 0.17% +0.13%
2 2025-02-06 0.04%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-20185

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.4 3.1 LOW
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
0.8 2.5 [email protected]
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
0.8 5.9 [email protected]

Weakness enumeration for CVE-2025-20185

Affected software / configurations for CVE-2025-20185

Vendor Product Version Raw CPE
cisco asyncos 13.0.0-392 cpe:2.3:o:cisco:asyncos:13.0.0-392:*:*:*:*:*:*:*
cisco asyncos 13.0.5-007 cpe:2.3:o:cisco:asyncos:13.0.5-007:*:*:*:*:*:*:*
cisco asyncos 13.5.1-277 cpe:2.3:o:cisco:asyncos:13.5.1-277:*:*:*:*:*:*:*
cisco asyncos 13.5.4-038 cpe:2.3:o:cisco:asyncos:13.5.4-038:*:*:*:*:*:*:*
cisco asyncos 14.0.0-698 cpe:2.3:o:cisco:asyncos:14.0.0-698:*:*:*:*:*:*:*
cisco asyncos 14.2.0-620 cpe:2.3:o:cisco:asyncos:14.2.0-620:*:*:*:*:*:*:*
cisco asyncos 14.2.1-020 cpe:2.3:o:cisco:asyncos:14.2.1-020:*:*:*:*:*:*:*
cisco asyncos 14.3.0-032 cpe:2.3:o:cisco:asyncos:14.3.0-032:*:*:*:*:*:*:*
cisco asyncos 15.0.0-104 cpe:2.3:o:cisco:asyncos:15.0.0-104:*:*:*:*:*:*:*
cisco asyncos 15.0.1-030 cpe:2.3:o:cisco:asyncos:15.0.1-030:*:*:*:*:*:*:*
cisco asyncos 15.0.3-002 cpe:2.3:o:cisco:asyncos:15.0.3-002:*:*:*:*:*:*:*
cisco asyncos 15.5.0-048 cpe:2.3:o:cisco:asyncos:15.5.0-048:*:*:*:*:*:*:*
cisco asyncos 15.5.1-055 cpe:2.3:o:cisco:asyncos:15.5.1-055:*:*:*:*:*:*:*
cisco asyncos 15.5.2-018 cpe:2.3:o:cisco:asyncos:15.5.2-018:*:*:*:*:*:*:*

References for CVE-2025-20185

cvelogic Threat Intelligence