CVE-2023-5936

Root code execution via unsafe temporary file

Published May 15, 2024 · Updated Aug 2, 2024

Incorrect temporary-file permissions in Nozomi Networks Arc before 1.6.0 allow local users to execute arbitrary code as root. On Linux and macOS, Arc creates an unspecified temporary file with permissions that permit a different local account to alter it. Exploitation requires local low-privileged access and timely control of that file, after which attacker-controlled code runs with root privileges.

CVSS severity7.3
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect temporary-file permissions in Nozomi Networks Arc before 1.6.0 allow local users to execute arbitrary code as root. On Linux and macOS, Arc creates an unspecified temporary file with permissions that permit a different local account to alter it. Exploitation requires local low-privileged access and timely control of that file, after which attacker-controlled code runs with root privileges.

The record

CVE
CVE-2023-5936
Published
May 15, 2024
Updated
Aug 2, 2024
Vendor
Nozomi Networks
Product
Arc
Classifications
CWE-732, CAPEC-180, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 <1.6.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Nozomi Networks · Arcversion=0 <1.6.0

Published CVSS scores

7.8Nozomi Networks Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.3Nozomi Networks Inc.CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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.

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No observations available

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

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1068Exploitation for Privilege Escalation

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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