CVE-2025-2796— On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal
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I. Basic Information for CVE-2025-2796
Vulnerability Information
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Vulnerability Title
On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal
Source: NVD (National Vulnerability Database)
Vulnerability Description
On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled and anti-replay protection configured, EOS may exhibit unexpected behavior in specific cases. Received duplicate encrypted packets, which should be dropped under normal anti-replay protection, will instead be forwarded due to this vulnerability. Note: this issue does not affect VXLANSec or MACSec encryption functionality.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Arista EOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arista EOS是美国Arista公司的一个完全可编程的、高度模块化的、基于Linux的网络操作系统。 Arista EOS存在安全漏洞，该漏洞源于在特定情况下可能错误转发应丢弃的重复加密数据包。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Arista Networks | EOS | 4.33.0 ~ 4.33.2F | - |
II. Public POCs for CVE-2025-2796
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Arista Networks · 2025-05-27 · 3 CVEs total
| CVE-2024-11185 | 6.5 MEDIUM | On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under cert |
| CVE-2025-2826 | 2.6 LOW | n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress AC |
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V. Comments for CVE-2025-2796
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