AS
Product
Asyncos
by Cisco · last CVE Oct 14, 2026
On CISA KEVExploited in the wild
56
CVEs
3
On KEV
10.0
Max CVSS
1
New 30D
Severity mix
Critical 3High 20Medium 29Low 0
Watch

Add Asyncos to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2022-20871
8.8
2%
Nov 15
A vulnerability in the web management interface of Cisco AsyncOS for Cisco Secure Web Appliance, formerly Cisco Web Security Appliance (WSA), could allow an…
Affected: 12.5.1-011; 12.5.2-007; 12.5.2-011; 12.5.3-002; 12.5.4-005; 12.5.4-011; +5 more
CVE-2022-20868
8.8
1%
Nov 3
A vulnerability in the web-based management interface of Cisco Email Security Appliance, Cisco Secure Email and Web Manager and Cisco Secure Web Appliance could allow an…
Affected: 13.0 before 14.2.1; 12.0 before 14.2.0; 11.8 before 12.5.5; 14.0 before 14.0.4; 14.5
CVE-2021-1359
8.8
2%
Jul 8
A vulnerability in the configuration management of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform command injection…
Affected: 11.8.0 before 12.0.3-005; 12.5.0 before 12.5.2
CVE-2019-15956
8.8
1%
Nov 26
A vulnerability in the web management interface of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform an…
Affected: 10.1 before 10.1.5-004; 10.5 before 11.5.3-016; 11.7 before 11.7.1-006
CVE-2019-1947
8.6
2%
Sep 23
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause…
Affected: 12.1.0-085
CVE-2019-1886
8.6
1%
Jul 4
A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition
Affected: 10.5 before 10.5.5-005; 11.5 before 11.5.2-020
CVE-2018-15460
8.6
3%
Jan 10
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to cause…
Affected: before 11.0.2-044_md; 11.1.0 before 11.1.2-023_md
CVE-2024-20383
8.4
0%
May 15
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager could allow an authenticated, remote attacker to conduct an…
Affected: before 15.5.1-024
CVE-2024-20435
7.8
0%
Jul 17
A vulnerability in the CLI of Cisco AsyncOS for Secure Web Appliance could allow an authenticated, local attacker to execute arbitrary commands and elevate privileges to root
Affected: 11.7.0-406; 11.7.0-418; 11.7.1-006; 11.7.1-020; 11.7.1-049; 11.7.2-011; +21 more
CVE-2020-3367
7.8
1%
Nov 18
A vulnerability in the log subscription subsystem of Cisco AsyncOS for the Cisco Secure Web Appliance (formerly Web Security Appliance) could allow an authenticated, local…
Affected: before 11.7.2-011; 11.8.0 before 11.8.2-009; 12.0.0 before 12.0.2; 12.5.0 before 12.5.1-011
CVE-2018-0095
7.8
0%
Jan 18
A vulnerability in the administrative shell of Cisco AsyncOS on Cisco Email Security Appliance (ESA) and Content Security Management Appliance (SMA) could allow an authenticated,…
Affected: 9.1.1-005; 9.7.2-065
CVE-2022-20653
7.5
2%
Feb 17
A vulnerability in the DNS-based Authentication of Named Entities (DANE) email verification component of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could…
Affected: before 13.0.3; 13.5.0 before 13.5.4.102; 14.0 before 14.0.2.020
CVE-2021-34741
7.5
1%
Nov 4
A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a…
Affected: before 13.0.4; 13.5.3-010; 13.7.0-093
CVE-2021-34698
7.5
1%
Oct 6
A vulnerability in the proxy service of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to exhaust system memory and cause a…
Affected: 12.0 before 12.0.3-005; 12.5 before 12.5.2-007; 14.0 before 14.0.1-014
CVE-2016-1461
7.5
2%
Aug 1
Cisco AsyncOS on Email Security Appliance (ESA) devices through 9.7.0-125 allows remote attackers to bypass malware detection via a crafted attachment in an e-mail message, aka…
Affected: through 9.7.0-125
CVE-2016-1438
7.5
1%
Jun 23
Cisco AsyncOS 9.7.0-125 on Email Security Appliance (ESA) devices allows remote attackers to bypass intended spam filtering via crafted executable content in a ZIP archive, aka…
Affected: 9.7.0-125
CVE-2021-1566
7.4
1%
Jun 16
A vulnerability in the Cisco Advanced Malware Protection (AMP) for Endpoints integration of Cisco AsyncOS for Cisco Email Security Appliance (ESA) and Cisco Web Security Appliance…
Affected: before 12.5.3-035; 13.0 before 13.0.0-030; 13.5 before 13.5.3-010; before 11.8.3-021; 12.0.0 before 12.0.3-005; 12.5.0 before 12.5.1-043
CVE-2025-20184
7.2
1%
Feb 5
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Web Appliance could allow an authenticated, remote…
Affected: 13.0.0-392; 13.0.5-007; 13.5.1-277; 13.5.4-038; 14.0.0-698; 14.2.0-620; +34 more
CVE-2024-20429
7.2
1%
Jul 17
A vulnerability in the web-based management interface of Cisco AsyncOS for Secure Email Gateway could allow an authenticated, remote attacker to execute arbitrary system commands…
Affected: 11.0.3-238; 11.1.0-069; 11.1.0-128; 11.1.0-131; 12.0.0-419; 12.1.0-071; +12 more
CVE-2017-12215
7.1
2%
Sep 21
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for the Cisco Email Security Appliance could allow an unauthenticated, remote attacker to cause an…
Affected: 9.0; 9.1; 9.1.2; 9.5; 9.6; 9.7; +1 more
Showing 20