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CVE-2025-59942— go-f3 module vulnerable to integer overflow leading to panic

Quick assessment

Affected
filecoin-project go-f3
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Go implementation of Fast Finality in Filecoin是Filecoin开源的一个快速确认机制的Golang库。 Go implementation of Fast Finality in Filecoin 0.8.6及之前版本存在输入验证错误漏洞，该漏洞源于验证特制消息时存在整数溢出，可能导致节点崩溃。

CVSS 7.5 · High EPSS 0.31% · P23
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I. Basic Information for CVE-2025-59942

Vulnerability Information
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Vulnerability Title
go-f3 module vulnerable to integer overflow leading to panic
Source: CVE Program / CVE List V5
Vulnerability Description
go-f3 is a Golang implementation of Fast Finality for Filecoin (F3). In versions 0.8.6 and below, go-f3 panics when it validates a "poison" messages causing Filecoin nodes consuming F3 messages to become vulnerable. A "poison" message can can cause integer overflow in the signer index validation, which can cause the whole node to crash. These malicious messages aren't self-propagating since the bug is in the validator. An attacker needs to directly send the message to all targets. This issue is fixed in version 0.8.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Go implementation of Fast Finality in Filecoin 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Go implementation of Fast Finality in Filecoin是Filecoin开源的一个快速确认机制的Golang库。 Go implementation of Fast Finality in Filecoin 0.8.6及之前版本存在输入验证错误漏洞，该漏洞源于验证特制消息时存在整数溢出，可能导致节点崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
filecoin-project go-f3 < 0.8.7 -

II. Public POCs for CVE-2025-59942

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III. Intelligence Information for CVE-2025-59942

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IV. Related Vulnerabilities

Same product: go-f3
Same vendor: filecoin-project
Same weakness: CWE-190

V. Comments for CVE-2025-59942

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