CVE-2024-58265Network attack vector

Message-delivery interruption via rejected-packet nonce increment

Published Jul 27, 2025 · Updated Jul 28, 2025

Denial of service in mcginty Snow before 0.9.5 allows remote authenticated users to interrupt message delivery via injected packets. TransportState increments its receive nonce even when authenticated decryption rejects a packet, leaving the receiver ahead of the sender. The attack requires packet-injection access to a stateful Noise channel; StatelessTransportState is unaffected, and desynchronization blocks delivery.

CVSS severity4.3
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in mcginty Snow before 0.9.5 allows remote authenticated users to interrupt message delivery via injected packets. TransportState increments its receive nonce even when authenticated decryption rejects a packet, leaving the receiver ahead of the sender. The attack requires packet-injection access to a stateful Noise channel; StatelessTransportState is unaffected, and desynchronization blocks delivery.

The record

CVE
CVE-2024-58265
Published
Jul 27, 2025
Updated
Jul 28, 2025
Vendor
mcginty
Product
Snow
Classifications
CWE-440, CWE-642, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.9.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

mcginty · Snowversion=0 <0.9.5

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
3.1MITRECVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-440Expected Behavior Violation
CWE-642External Control of Critical State Data
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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