8

CVE-2024-28860: Insecure IPsec transport encryption in Cilium

Analyzed
AliasesCGA-ghqf-jj3v-w2hhCGA-m36p-ph7j-gf34CGA-mfh7-93j8-q5fw
Published 27-03-2024Last modified 10-04-2025

Vulnerability summary

CVE-2024-28860 is a high (CVSS 8.0) Inadequate Encryption Strength vulnerability in cilium. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.2% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.0/10
010
High · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-GG7X-J7J5-R8QVCGA-PM2P-86P9-VF8F

Timeline

  1. 27-03-2024
    PublishedVulnerability first disclosed.
  2. 10-04-2025
    Last modifiedVulnerability information updated.

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Users of IPsec transparent encryption in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective. In particular, Cilium is vulnerable to chosen plaintext, key recovery, replay attacks by a man-in-the-middle attacker. These attacks are possible due to an ESP sequence number collision when multiple nodes are configured with the same key. Fixed versions of Cilium use unique keys for each IPsec tunnel established between nodes, resolving all of the above attacks. This vulnerability is fixed in 1.13.13, 1.14.9, and 1.15.3.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.17% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard2 products
  • hubble-ui< 0.13.0-r6
  • hubble-ui-backend< 0.13.3-r1
Wolfi2 products
  • hubble-ui< 0.13.0-r6
  • hubble-ui-backend< 0.13.3-r1
Cilium1 product
  • cilium≥ 1.4.0, ≤ 1.13.14 | ≥ 1.4.0, < 1.13.14 | ≥ 1.14.0, < 1.14.9 | ≥ 1.15.0, < 1.15.3
Github.com/cilium1 product
  • cilium≥ 1.4.0, < 1.13.14 | ≥ 1.14.0, < 1.14.9 | ≥ 1.15.0, < 1.15.3

4 vendors · 6 products

References

9 links