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CVE-2020-8437
The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote…
High7.5EPSS 12.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The bencoding parser in BitTorrent uTorrent through 3.5.5 (build 45505) misparses nested bencoded dictionaries, which allows a remote attacker to cause a denial of service.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 12.0% · top 3.8% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (4)
- https://forum.utorrent.com/forum/13-announcements/ (opens in a new tab)x_refsource_MISCx_transferred
- https://twitter.com/va_start (opens in a new tab)x_refsource_MISCx_transferred
- https://utclient.utorrent.com/offers/beta_release_notes/release_notes.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://blog.whtaguy.com/2020/09/utorrent-cve-2020-8437-vulnerability.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-8437)Record last updated .