Cat3k-caa-universalk9.spa.03.06.10.e.152-2.e10.bin 〈FREE · 2026〉

| CVE | Impact | Fixed in later version? | |------|---------|----------------| | CVE-2019-12644 (IKEv1 DoS) | Remote crash | Yes (15.2(4)E or later) | | CVE-2019-18615 (SBI Elevation) | Privilege escalation | Yes | | CVE-2020-3362 (DHCP DoS) | Memory leak | Yes (15.2(7)E) | | CVE-2021-34725 (Stack overflow in APP) | Remote code execution | Yes |

| Field | Value | Interpretation | | :--- | :--- | :--- | | Platform | cat3k-caa | Catalyst 3K family, "CAA" indicates ARM-based CPU (not older PPC). | | Image Type | universalk9 | Single image containing both IP Base and IP Services features (license-controlled). | | Package | spa | Single package architecture (all features bundled into one .bin file). | | IOS-XE Version | 03.06.10.e | IOS-XE version 3.6.10E (old numbering; now 16.x/17.x). | | IOS Version | 152-2.e10 | IOS 15.2(2)E10 – the classic IOS inside the IOS-XE kernel. |

Important: 03.06.10.E and 15.2(2)E10 refer to the exact same software. cat3k-caa-universalk9.spa.03.06.10.e.152-2.e10.bin

To fully appreciate this software image, we must break it down like a digital Rosetta Stone.

Why would a network engineer seek out this specific image? Here are the key features and fixes associated with release 15.2(2)E10. | CVE | Impact | Fixed in later version

This release was critical for patching the IKEv1 fragmentation vulnerability (CVE-2016-6415) and various TCP stack vulnerabilities. If you are running a switch that terminates VPNs or uses SSH management, this image closes several remote-code-execution paths.

In the world of enterprise networking, Cisco’s Catalyst 3750-X and 3560-X series switches are legendary for their reliability, stacking capabilities, and feature-rich IOS (Internetwork Operating System). However, maintaining these workhorses requires a nuanced understanding of the software that powers them. To fully appreciate this software image, we must

The filename cat3k-caa-universalk9.spa.03.06.10.e.152-2.e10.bin is more than just a random string of characters. It represents a specific, pivotal software release for the Catalyst 3K family (specifically the "CAA" architecture). This article dissects every component of this filename, explores its technical implications, and provides guidance on deployment, compatibility, and security.

  • When to avoid:

    • | Missing Feature | Impact | | :--- | :--- | | Programmable APIs (RESTCONF/NETCONF/YANG) | No automation beyond SNMP/CLI | | UADP 2.0 ASIC features (e.g., segment routing) | Not available | | Full VRF support (VRF-aware services limited) | Limited multi-tenancy | | IP SLA for VRF | Not fully functional | | MACsec on SFP ports | Not supported in 3.6.x | | Modern StackWise Virtual | Not available | | Security patches after 2017 | All CVEs post-2017 unpatched |