CVE-2024-12830: Arista NG Firewall · Path Traversal
Affects Arista NG FirewallSource CVE Database V5
Not known to be exploited · CVSS 8.1 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 Dec 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Arista NG Firewall | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2024-12830, organizations should take immediate and specific actions beyond generic patching advice. First, restrict network access to the Arista NG Firewall management interfaces to trusted IP addresses only, using network segmentation and access control lists to minimize exposure. Implement strict input validation and sanitization on any interfaces that interact with file paths, if customization or scripting is used. Monitor firewall logs and network traffic for unusual or suspicious requests that may indicate path traversal attempts, employing intrusion detection systems with updated signatures. If a patch is not yet available, consider deploying virtual patching via web application firewalls or network-level filtering to block malicious payloads targeting the custom_handler method. Regularly audit firewall configurations and user privileges to ensure minimal attack surface. Engage with Arista support for updates and apply patches promptly once released. Additionally, conduct penetration testing focused on path traversal and code execution vectors to validate the effectiveness of mitigations.
Description
Arista NG Firewall custom_handler Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Arista NG Firewall. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the custom_handler method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the www-data user. Was ZDI-CAN-24019.