ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES
ASA5520-UC-BUN-K8
Chassis
· ASA 5500-X series
Is the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES still supported?
No. Cisco ended support for the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES on 2018-09-30. No further security fixes will be issued. See Cisco's lifecycle bulletin.
When does the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES reach end of support?
Cisco support for the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES ends on 2018-09-30.
What replaces the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES?
Cisco has not published a successor model for the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES.
What known-exploited CVEs apply to the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES past end of support?
14 CVEs in CISA's Known Exploited Vulnerabilities catalog apply to the platform the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES runs. These will not be patched on this device because it is past the Cisco security-support date. See the Known Exploited Vulnerabilities table below for the full list.
Known Exploited Vulnerabilities
This device is past Cisco's security-support date. 14 CVEs in CISA's Known Exploited Vulnerabilities catalog apply to the platform it runs. Cisco is not issuing patches for this model. Isolate, compensate, or refresh.
| CVE | KEV added | Vulnerability | Flags |
|---|---|---|---|
CVE-2026-20349
|
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection Vulnerability | ||
CVE-2025-20362
|
Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Missing Authorization Vulnerability | ||
CVE-2025-20333
|
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow Vulnerability | ||
CVE-2014-2120
|
Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS) Vulnerability | ||
CVE-2024-20481
|
Cisco ASA and FTD Denial-of-Service Vulnerability | ||
CVE-2024-20359
|
Cisco ASA and FTD Privilege Escalation Vulnerability | ||
CVE-2024-20353
|
Cisco ASA and FTD Denial of Service Vulnerability | ||
CVE-2020-3259
|
Cisco ASA and FTD Information Disclosure Vulnerability | Ransomware | |
CVE-2023-20269
|
Cisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access Vulnerability | Ransomware | |
CVE-2016-6366
|
Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability | ||
CVE-2016-6367
|
Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution Vulnerability | ||
CVE-2020-3452
|
Cisco ASA and FTD Read-Only Path Traversal Vulnerability | ||
CVE-2020-3580
|
Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability | Ransomware | |
CVE-2018-0296
|
Cisco Adaptive Security Appliance (ASA) Denial-of-Service Vulnerability |
Source: CISA Known Exploited Vulnerabilities catalog. The Ransomware flag reflects CISA's own knownRansomwareCampaignUse field, set when the CVE has been observed in ransomware campaigns per their threat intel. It's not a property of the vulnerability description itself.
Correlation is at the platform level, not per-OS-version. Not exhaustive: KEV only lists actively-exploited CVEs and many relevant unexploited vulnerabilities are not here. Verify against vendor security advisories (PSIRT, JSA, PAN-SA) and NVD before acting. See compensating controls if refresh isn't immediate.
ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES Lifecycle Overview
The Cisco ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES (ASA5520-UC-BUN-K8) is a chassis product in the Cisco ASA 5500-X series. This product has reached end of life as of , meaning Cisco no longer provides technical support, software updates, or hardware replacement for this product. It was last available for purchase on . Organizations still running the ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES should plan a migration .
Lifecycle Milestones
| Lifecycle notice published | 13y 7mo ago | |
|---|---|---|
| End of sale | 13y 1mo ago | |
| Last order date | 12y 10mo ago | |
| End of failure analysis | 12y 1mo ago | |
| Last date of support | 8y 1mo ago |
ASA 5520 UC Bundle With 1000 UC Proxy Sessions, DES