CVE-2020-37010

CRITICAL

BearShare Lite 5.2.5 - Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37010. PoCs published by Christian Vierschilling.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in BearShare Lite 5.2.5 via the 'Advanced Search' feature. It overwrites the EIP register with a JMP ESP instruction and executes alphanumeric shellcode to spawn calc.exe.

Description

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.

Exploits (1)

exploitdb WORKING POC
by Christian Vierschilling · pythonlocalwindows
https://www.exploit-db.com/exploits/48839

This exploit targets a buffer overflow vulnerability in BearShare Lite 5.2.5 via the 'Advanced Search' feature. It overwrites the EIP register with a JMP ESP instruction and executes alphanumeric shellcode to spawn calc.exe.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: BearShare Lite 5.1.0 - 5.2.5
No auth needed
Prerequisites: Target must open the generated payload file and paste it into the 'Advanced Search' field in BearShare
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/48839
Various Sources product
http://www.bearshareofficial.com/

Scores

CVSS v3 9.8
EPSS 0.0044
EPSS Percentile 34.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-120
Status published
Products (1)
BearshareOfficial/BearShare Lite 5.1.0 - 5.2.5
Published Jan 29, 2026
Tracked Since Feb 18, 2026