Cyber Resilience

CVE-2025-8204

Comodo Dragon ≤ 134.0.6998.179

Public PoC
Published
26 July 2025
Modified
17 June 2026
CVSS Score v4 1.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0060 46th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2025-8204 is a low-severity Improperly Implemented Security Check for Standard (CWE-358) vulnerability in Comodo Dragon. Its CVSS base score is 1.3 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Downgrade Attack (T1689); ranked at the 46th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

A vulnerability classified as problematic was found in Comodo Dragon up to 134.0.6998.179. Affected by this vulnerability is an unknown functionality of the component HSTS Handler. The manipulation leads to security check for standard. The attack can be launched remotely.…

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The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1689 Downgrade Attack Defense Impairment
Adversaries may downgrade or use a version of system features that may be outdated, vulnerable, and/or does not support updated security controls.
T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-8205Same product: Comodo Dragon
CVE-2025-8206Same product: Comodo Dragon
CVE-2024-27842Shared CWE-358
CVE-2026-49783Shared CWE-358
CVE-2023-2585Shared CWE-358
CVE-2025-31969Shared CWE-358
CVE-2024-25545Shared CWE-358
CVE-2024-41907Shared CWE-358
CVE-2024-5500Shared CWE-358
CVE-2024-23592Shared CWE-358

Affected Assets

comodo
dragon
≤ 134.0.6998.179

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V17.2.8

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-358

Assessments identify and document improperly implemented security checks, allowing fixes that reduce exploitation of flawed checks.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require correct implementation of standardized security checks and algorithms.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development and acceptance validates that required security checks function as specified.

prevents

Use of cryptography control depends on correct implementation of standardized cryptographic checks.

prevents

Secure development life cycle mandates verification that security checks required by standards are correctly implemented.

prevents

Application security requirements explicitly call for correct implementation of standardized security mechanisms.

prevents

Secure system architecture and engineering principles require faithful realization of protocol-level security checks.

prevents

Secure coding practices directly address correct implementation of security-relevant checks in standardized algorithms.

References