CVE-2025-32793
Cilium packets from terminating endpoints may not be encrypted in Wireguard-enabled clusters
Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue.
INFO
Published Date :
April 21, 2025, 4:15 p.m.
Last Modified :
Sept. 3, 2025, 5:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Cilium to version 1.15.16 or later.
- Update Cilium to version 1.16.9 or later.
- Update Cilium to version 1.17.3 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-32793.
| URL | Resource |
|---|---|
| https://github.com/cilium/cilium/pull/38592 | Patch |
| https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4 | Patch Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-32793 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-32793
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-32793 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-32793 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 03, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N Added CWE CWE-362 Added CPE Configuration OR *cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.15.16 *cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* versions from (including) 1.16.0 up to (excluding) 1.16.9 *cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:* versions from (including) 1.17.0 up to (excluding) 1.17.3 Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/pull/38592 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4 Types: Patch, Third Party Advisory -
New CVE Received by [email protected]
Apr. 21, 2025
Action Type Old Value New Value Added Description Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Versions 1.15.0 to 1.15.15, 1.16.0 to 1.16.8, and 1.17.0 to 1.17.2, are vulnerable when using Wireguard transparent encryption in a Cilium cluster, packets that originate from a terminating endpoint can leave the source node without encryption due to a race condition in how traffic is processed by Cilium. This issue has been patched in versions 1.15.16, 1.16.9, and 1.17.3. There are no workarounds available for this issue. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N Added CWE CWE-319 Added Reference https://github.com/cilium/cilium/pull/38592 Added Reference https://github.com/cilium/cilium/security/advisories/GHSA-5vxx-c285-pcq4