CVE-2017-15358: Race condition in the Charles Proxy Settings suid binary in Charles Proxy before 4.2.1 allows local users to g

Q: How do I fix CVE-2017-15358?

charles: upgrade to 4.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2017-15358 being exploited?

CVE-2017-15358 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-15358 affect?

CVE-2017-15358 affects charles. Severity is high (CVSS 7.0). Race condition in the Charles Proxy Settings suid binary in Charles Proxy before 4.2.1 allows local users to gain privileges via vectors involving the --self-repair option.

Q: How urgent is CVE-2017-15358?

Priority 43/100. High severity; Public exploit reference

This month

HIGH 7.0UPGRADE

CVE-2017-15358 is a high-severity flaw (CVSS 7.0) affecting charles. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Race condition in the Charles Proxy Settings suid binary in Charles Proxy before 4.2.1 allows local users to gain privileges via vectors involving the --self-repair option.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.0 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-362
Published	2018-08-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: charlesproxy

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-08-03 18:29 UTCPublished CVE record published
2026-06-17 01:07 UTCUpdated Record last modified

charlesproxy charles UPGRADE

Affected: < 4.2.1

Fixed in: 4.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy charles || rpm -q charles || charles --version

2. UPGRADE to 4.2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade charles

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade charles

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Charles Proxy 4.2 - Local Privilege Escalation

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-15358?

charles: upgrade to 4.2.1. Exact commands for each OS are on this page.

Is CVE-2017-15358 being exploited?

CVE-2017-15358 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-15358 affect?

CVE-2017-15358 affects charles. Severity is high (CVSS 7.0). Race condition in the Charles Proxy Settings suid binary in Charles Proxy before 4.2.1 allows local users to gain privileges via vectors involving the --self-repair option.

How urgent is CVE-2017-15358?

Priority 43/100. High severity; Public exploit reference

References

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