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CVE-2025-29785— quic-go Has Panic in Path Probe Loss Recovery Handling

Quick assessment

Affected
quic-go quic-go
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

quic-go是Lucas Clemente个人开发者的一种 QUIC 协议、RFC 9000协议在 Go 中的实现。 quic-go v0.50.1之前版本存在安全漏洞，该漏洞源于路径探测包丢失恢复逻辑问题，可能导致空指针取消引用。

CVSS 7.5 · High EPSS 0.48% · P41

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-29785

Vulnerability Information
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Vulnerability Title
quic-go Has Panic in Path Probe Loss Recovery Handling
Source: CVE Program / CVE List V5
Vulnerability Description
quic-go is an implementation of the QUIC protocol in Go. The loss recovery logic for path probe packets that was added in the v0.50.0 release can be used to trigger a nil-pointer dereference by a malicious QUIC client. In order to do so, the attacker first sends valid QUIC packets from different remote addresses (thereby triggering the newly added path validation logic: the server sends path probe packets), and then sending ACKs for packets received from the server specifically crafted to trigger the nil-pointer dereference. v0.50.1 contains a patch that fixes the vulnerability. This release contains a test that generates random sequences of sent packets (both regular and path probe packets), that was used to verify that the patch actually covers all corner cases. No known workarounds are available.
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
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
quic-go 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
quic-go是Lucas Clemente个人开发者的一种 QUIC 协议、RFC 9000协议在 Go 中的实现。 quic-go v0.50.1之前版本存在安全漏洞，该漏洞源于路径探测包丢失恢复逻辑问题，可能导致空指针取消引用。
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
quic-go quic-go = 0.50.0 -

II. Public POCs for CVE-2025-29785

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9843 chars
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III. Intelligence Information for CVE-2025-29785

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Vendor Advisories for CVE-2025-29785 (1)

IV. Related Vulnerabilities

Same product: quic-go
Same vendor: quic-go
Same weakness: CWE-248

V. Comments for CVE-2025-29785

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