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CVE-2024-30156

HIGHCVSS 7.5/10EPSS 3.66%

Last modified

CVE-2024-30156 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 3.66% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
3.66%

88.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2024-30156?
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 severe is CVE-2024-30156?
CVE-2024-30156 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.66% probability of exploitation in the next 30 days.
How do I fix CVE-2024-30156?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-30156?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST