PT-2025-12843 · Arista · Arista Ng Firewall

Gereon Huppertz · Published 2025-03-25 · Updated 2025-08-14 · CVE-2025-2767

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Arista NG Firewall (affected versions not specified)

Description This issue allows remote attackers to execute arbitrary code on affected installations of Arista NG Firewall with minimal user interaction required. The flaw exists within the processing of the User-Agent HTTP header due to the lack of proper validation of user-supplied data, leading to the injection of an arbitrary script. An attacker can leverage this vulnerability to execute code in the context of root.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-2767

ZDI-25-181

Affected Products

Arista Ng Firewall

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2025-2767 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-25-181 · Security Note
• https://osv.dev/vulnerability/CVE-2025-2767 · Vendor Advisory
• https://t.me/cveNotify/132261 · Telegram Post
• https://t.me/latest_high_impact_cve/2189 · Telegram Post
• https://twitter.com/CveFindCom/status/1915088843889430818 · Twitter Post
• https://twitter.com/TheZDIBugs/status/1904956565804765241 · Twitter Post
• https://twitter.com/CVEnew/status/1915091902824890720 · Twitter Post
• https://twitter.com/SecAideInfo/status/1916073081447006542 · Twitter Post
• https://t.me/cvetracker/22218 · Telegram Post
• https://t.me/cvedetector/23613 · Telegram Post