uTorrent PRNG improper authentication
Priority HIGH 71CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
A vulnerability classified as critical was found in uTorrent. This vulnerability affects unknown code of the component PRNG. The manipulation leads to weak authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01177 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| unspecified | uTorrent | all versions | — | No fix listed | CNA |
- uTorrent Vendorunspecified Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bittorrent:utorrent:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Bittorrent |
- cpe:2.3:a:bittorrent:utorrent:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Bittorrent
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-25043
- 2026-10-03 Alias added: GHSA-45qr-3x63-9j8c
References
More Bittorrent Utorrent vulnerabilities
- TI-2018-15271 uTorrent Guest Account privileges management CVSS 3.1HIGH 8.8
- TI-2018-15269 uTorrent memory corruption CVSS 3.1HIGH 8.8
- TI-2020-06774 The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested… CVSS 3.1HIGH 7.5
Sources
- CVE-2018-25043 · CVE Program
- CVE-2018-25043 · NVD
- FIRST EPSS
- GHSA-45qr-3x63-9j8c · 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