CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
15.5%
Cilium is vulnerable to Inadequate Encryption Strength. The vulnerability is due to an ESP sequence number collision when multiple nodes are configured with the same key, leading to chosen plaintext, key recovery, and replay attacks by a man-in-the-middle attacker.
docs.cilium.io/en/stable/security/network/encryption-ipsec
github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72
github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149
github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa
github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586