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Vulnerability details: VCID-3s9v-tggu-cfdr
Vulnerability ID VCID-3s9v-tggu-cfdr
Aliases CVE-2025-67725
Summary tornado: Tornado Quadratic DoS via Repeated Header Coalescing
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 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-67725.json
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2025-67725
epss 0.00212 https://api.first.org/data/v1/epss?cve=CVE-2025-67725
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://github.com/tornadoweb/tornado/commit/771472cfdaeebc0d89a9cc46e249f8891a6b29cd
ssvc Track https://github.com/tornadoweb/tornado/commit/771472cfdaeebc0d89a9cc46e249f8891a6b29cd
cvssv3.1 7.5 https://github.com/tornadoweb/tornado/releases/tag/v6.5.3
ssvc Track https://github.com/tornadoweb/tornado/releases/tag/v6.5.3
cvssv3.1 7.5 https://github.com/tornadoweb/tornado/security/advisories/GHSA-c98p-7wgm-6p64
ssvc Track https://github.com/tornadoweb/tornado/security/advisories/GHSA-c98p-7wgm-6p64
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-67725.json
https://api.first.org/data/v1/epss?cve=CVE-2025-67725
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-67725
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1122661 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1122661
2421722 https://bugzilla.redhat.com/show_bug.cgi?id=2421722
771472cfdaeebc0d89a9cc46e249f8891a6b29cd https://github.com/tornadoweb/tornado/commit/771472cfdaeebc0d89a9cc46e249f8891a6b29cd
GHSA-c98p-7wgm-6p64 https://github.com/tornadoweb/tornado/security/advisories/GHSA-c98p-7wgm-6p64
RHSA-2026:0930 https://access.redhat.com/errata/RHSA-2026:0930
RHSA-2026:2106 https://access.redhat.com/errata/RHSA-2026:2106
RHSA-2026:2462 https://access.redhat.com/errata/RHSA-2026:2462
RHSA-2026:2465 https://access.redhat.com/errata/RHSA-2026:2465
RHSA-2026:2469 https://access.redhat.com/errata/RHSA-2026:2469
RHSA-2026:2484 https://access.redhat.com/errata/RHSA-2026:2484
RHSA-2026:3713 https://access.redhat.com/errata/RHSA-2026:3713
USN-7950-1 https://usn.ubuntu.com/7950-1/
v6.5.3 https://github.com/tornadoweb/tornado/releases/tag/v6.5.3
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-67725.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://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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://github.com/tornadoweb/tornado/commit/771472cfdaeebc0d89a9cc46e249f8891a6b29cd
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/2025-12-18T18:50:52Z/ Found at https://github.com/tornadoweb/tornado/commit/771472cfdaeebc0d89a9cc46e249f8891a6b29cd
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/tornadoweb/tornado/releases/tag/v6.5.3
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/2025-12-18T18:50:52Z/ Found at https://github.com/tornadoweb/tornado/releases/tag/v6.5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/tornadoweb/tornado/security/advisories/GHSA-c98p-7wgm-6p64
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/2025-12-18T18:50:52Z/ Found at https://github.com/tornadoweb/tornado/security/advisories/GHSA-c98p-7wgm-6p64
Exploit Prediction Scoring System (EPSS)
Percentile 0.43777
EPSS Score 0.00212
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:37:40.313155+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-67725.json 38.6.0