NULL pointer dereference in Bittorrent Utorrent
CVE-2020-8437
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.120 (96.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.120 · newest: 0.120 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- forum.utorrent.com/forum/13-announcements/ (Vendor Advisory)
- twitter.com/va_start (Third Party Advisory)
- utclient.utorrent.com/offers/beta_release_notes/release_notes.html (Release Notes, Vendor Advisory)
- blog.whtaguy.com/2020/09/utorrent-cve-2020-8437-vulnerability.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8437?
- CVE-2020-8437 is a high-severity vulnerability in Bittorrent Utorrent, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2020-03-02.
- How severe is CVE-2020-8437?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-8437 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.