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Vulnerability details: VCID-b85u-4g42-nyaq
Vulnerability ID VCID-b85u-4g42-nyaq
Aliases CVE-2024-30156
VSV00014
Summary varnish: HTTP/2 Broken Window Attack may result in denial of service
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-400 Uncontrolled Resource Consumption
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-30156.json
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2024-30156
cvssv3.1 7.5 https://varnish-cache.org/docs/7.5/whats-new/changes-7.5.html#security
ssvc Track https://varnish-cache.org/docs/7.5/whats-new/changes-7.5.html#security
cvssv3.1 7.5 https://varnish-cache.org/security/VSV00014.html
ssvc Track https://varnish-cache.org/security/VSV00014.html
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-30156.json
https://api.first.org/data/v1/epss?cve=CVE-2024-30156
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-30156
1068455 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1068455
2271486 https://bugzilla.redhat.com/show_bug.cgi?id=2271486
changes-7.5.html#security https://varnish-cache.org/docs/7.5/whats-new/changes-7.5.html#security
CVE-2024-30156 https://nvd.nist.gov/vuln/detail/CVE-2024-30156
RHSA-2024:1689 https://access.redhat.com/errata/RHSA-2024:1689
RHSA-2024:1690 https://access.redhat.com/errata/RHSA-2024:1690
RHSA-2024:1691 https://access.redhat.com/errata/RHSA-2024:1691
RHSA-2024:2700 https://access.redhat.com/errata/RHSA-2024:2700
RHSA-2024:2820 https://access.redhat.com/errata/RHSA-2024:2820
RHSA-2024:2938 https://access.redhat.com/errata/RHSA-2024:2938
RHSA-2024:3305 https://access.redhat.com/errata/RHSA-2024:3305
RHSA-2024:3426 https://access.redhat.com/errata/RHSA-2024:3426
RHSA-2024:4937 https://access.redhat.com/errata/RHSA-2024:4937
VSV00014.html https://varnish-cache.org/security/VSV00014.html
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-30156.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://varnish-cache.org/docs/7.5/whats-new/changes-7.5.html#security
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-21T19:07:53Z/ Found at https://varnish-cache.org/docs/7.5/whats-new/changes-7.5.html#security
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://varnish-cache.org/security/VSV00014.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-21T19:07:53Z/ Found at https://varnish-cache.org/security/VSV00014.html
Exploit Prediction Scoring System (EPSS)
Percentile 0.22407
EPSS Score 0.00071
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:39:03.540897+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-30156.json 36.1.3