What is CVE-2020-37010?

CVE-2020-37010 is a critical-severity vulnerability in Bearshareofficial Bearshare Lite, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2026-01-29.

How severe is CVE-2020-37010?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Bearshareofficial Bearshare Lite

CVE-2020-37010

BearShare Lite 5.2.5 contains a buffer overflow vulnerability in the Advanced Search keywords input that allows attackers to execute arbitrary code. Attackers can craft a specially designed payload to overwrite the EIP register and execute shellcode by pasting malicious content into the search keywords field.

Vulnerability class: Buffer Overflow

Published 2026-01-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (39.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Affected products

Bearshareofficial Bearshare Lite — versions 5.1.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

ExploitDB-48839 (exploit)
Official BearShare Homepage (product)
BearShare Lite 5.2.5 Download Page (product)
VulnCheck Advisory: BearShare Lite 5.2.5 - 'Advanced Search'Buffer Overflow in (PoC) (third-party-advisory)

Frequently asked questions

What is CVE-2020-37010?: CVE-2020-37010 is a critical-severity vulnerability in Bearshareofficial Bearshare Lite, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2026-01-29.
How severe is CVE-2020-37010?: Critical severity. CVSS v3 base score is 9.8 out of 10.