CVE-2025-8204: Comodo Dragon · Security Check for Standard
Affects Comodo DragonSource CVE Database V5
Public exploit available · CVSS 2.3 Low.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS: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:PExploitation evidence
Disclosed: evidence found.
CVE published 26 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Comodo Dragon | Affected
| Fixed in– |
AI-suggested
- Organizations should assess the usage of Comodo Dragon within their environment and consider migrating users to more actively maintained browsers with timely security updates, such as Chromium, Firefox, or Edge.
- Until a patch is available, implement network-level protections such as enforcing HTTPS via enterprise proxies or network security devices that validate SSL/TLS connections independently of the browser's HSTS implementation.
- Educate users about the risks of visiting untrusted websites and the importance of cautious browsing behavior to reduce the likelihood of user interaction-based exploitation.
- Monitor threat intelligence feeds and vendor announcements for any updates or patches related to this vulnerability.
- Employ endpoint detection and response (EDR) tools to detect anomalous network activity that could indicate exploitation attempts.
- Where possible, disable or restrict the use of Comodo Dragon in sensitive environments until the vulnerability is addressed.
Description
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. 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.