quic-go up to 0.49.0/0.54.0 HANDSHAKE_DONE Frame assertion

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in quic-go up to 0.49.0/0.54.0. It has been declared as problematic. This affects an unknown part of the component HANDSHAKE_DONE Frame Handler. Such manipulation leads to assertion. This vulnerability is documented as CVE-2025-59530. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in quic-go up to 0.49.0/0.54.0 and classified as problematic. Affected by this issue is some unknown processing of the component HANDSHAKE_DONE Frame Handler. The manipulation with an unknown input leads to a assertion vulnerability. Using CWE to declare the problem leads to CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. Impacted is availability. CVE summarizes:

quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-59530 since 09/17/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 275792 (RHEL 9 : Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update (Moderate) (RHSA-2025:21768)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.49.1, 0.54.1 or 0.55.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (275792) and CERT Bund (WID-SEC-2025-2635). Once again VulDB remains the best source for vulnerability data.

Affected

  • Red Hat Ansible Automation Platform

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 275792
Nessus Name: RHEL 9 : Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update (Moderate) (RHSA-2025:21768)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: quic-go 0.49.1/0.54.1/0.55.0
Patch: github.com

Timelineinfo

09/17/2025 CVE reserved
10/11/2025 +24 days Advisory disclosed
10/11/2025 +0 days VulDB entry created
11/20/2025 +40 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-47m2-4cr7-mhcw
Status: Confirmed

CVE: CVE-2025-59530 (🔒)
GCVE (CVE): GCVE-0-2025-59530
GCVE (VulDB): GCVE-100-327956
CERT Bund: WID-SEC-2025-2635 - Red Hat Ansible Automation Platform: Schwachstelle ermöglicht Denial of Service

Entryinfo

Created: 10/11/2025 09:48
Updated: 11/20/2025 04:30
Changes: 10/11/2025 09:48 (64), 11/19/2025 12:32 (7), 11/20/2025 04:30 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!