CVE-2024-30156
7.5
HIGH
CVSS 3.1
EPSS 0.07%
Description
Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack.
How to fix CVE-2024-30156
To remediate CVE-2024-30156, upgrade the affected package to a fixed version below.
- Alpine/varnish—upgrade to 7.3.2-r0 or later
- Debian/varnish—no fix listed
Is CVE-2024-30156 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 7.3.2-r0
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |