CVE-2023-35767Network attack vector

Unauthenticated server termination via rmt-Shutdown RPC

Published Nov 8, 2023 · Updated Nov 11, 2024

Denial of service in Perforce Helix Core before 2023.2 allows remote attackers to terminate the server via an rmt-Shutdown RPC request. The rmt-Shutdown handler accepts the required remote username without authenticating credentials and then terminates the server process. No credentials are required; any host that can reach the service can interrupt version-control and dependent Swarm operations.

CVSS severity7.5
High
EPSS probability0.95%
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 Perforce Helix Core before 2023.2 allows remote attackers to terminate the server via an rmt-Shutdown RPC request. The rmt-Shutdown handler accepts the required remote username without authenticating credentials and then terminates the server process. No credentials are required; any host that can reach the service can interrupt version-control and dependent Swarm operations.

The record

CVE
CVE-2023-35767
Published
Nov 8, 2023
Updated
Nov 11, 2024
Vendor
Perforce Software
Product
Helix Swarm
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0.0.0 <2024.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Perforce Software · Helix Swarmversion=0.0.0 <2024.1
BlazeMeter · Helix Coreversion=0.0.0 <2021.2\/patch_10\/; version=0.0.0 <2022.1\/patch_6\/; version=0.0.0 <2022.2\/patch_3\/; version=0 <2023.1\/patch_2\/
Perforce Software · Helix Coreversion=0.0.0 <2021.2 Patch 10; version=0.0.0 <2022.1 Patch 6; version=0.0.0 <2022.2 Patch 3; version=0.0.0 <2023.1 Patch 2; version=0.0.0 <2023.2

Published CVSS scores

7.5PerforceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

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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