Tor Browser on Windows before 8.0 allows remote attackers to bypass the intended…
Priority LOW 25CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
Tor Browser on Windows before 8.0 allows remote attackers to bypass the intended anonymity feature and discover a client IP address, a different vulnerability than CVE-2017-16541. User interaction is required to trigger this vulnerability.
Why it matters now
EPSS 0.02355 83rd percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:torproject:tor_browser:*:*:*:*:*:*:*:* | before 8.0 | Vulnerable | torproject |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:torproject:tor_browser:*:*:*:*:*:*:*:* Versions before 8.0 Vulnerable ·torproject
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16639
- 2026-10-03 Alias added: GHSA-26f9-32j2-77qg
References
More torproject Tor Browser vulnerabilities
- TI-2018-12134 NoScript Classic before 5.1.8.7, as used in Tor Browser 7.x and other products, allows… CVSS 3.0CRITICAL 9.8
- TI-2021-16631 Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can… CVSS 3.1MEDIUM 6.1
- TI-2019-09791 Tor Browser through 8.5.3 has an information exposure vulnerability. CVSS 3.0MEDIUM 5.3
- TI-2019-09231 Tor Browser before 8.0.1 has an information exposure vulnerability. CVSS 3.1MEDIUM 4.3
Sources
- CVE-2017-16639 · CVE Program
- CVE-2017-16639 · NVD
- FIRST EPSS
- GHSA-26f9-32j2-77qg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences