CVE-2023-39150: ConEmu before commit 230724 does not sanitize title responses correctly for control characters, potentially le

Q: How do I fix CVE-2023-39150?

conemu: upgrade to 23.07.24. Exact commands for each OS are on this page.

Q: Is CVE-2023-39150 being exploited?

CVE-2023-39150 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-2023-39150 affect?

CVE-2023-39150 affects conemu. Severity is critical (CVSS 9.8). ConEmu before commit 230724 does not sanitize title responses correctly for control characters, potentially leading to arbitrary code execution. This is related to an incomplete fix for CVE-2022-46387.

Q: How urgent is CVE-2023-39150?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-39150 is a critical-severity flaw (CVSS 9.8) affecting conemu. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ConEmu before commit 230724 does not sanitize title responses correctly for control characters, potentially leading to arbitrary code execution. This is related to an incomplete fix for CVE-2022-46387.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Published	2023-09-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: maximus5

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

Am I affected?

Timeline

2023-09-12 13:15 UTCPublished CVE record published
2026-06-17 06:11 UTCUpdated Record last modified

maximus5 conemu UPGRADE

Affected: < 23.07.24

Fixed in: 23.07.24

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 23.07.24 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade conemu

Note

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

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-2023-39150?

conemu: upgrade to 23.07.24. Exact commands for each OS are on this page.

Is CVE-2023-39150 being exploited?

CVE-2023-39150 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-2023-39150 affect?

CVE-2023-39150 affects conemu. Severity is critical (CVSS 9.8). ConEmu before commit 230724 does not sanitize title responses correctly for control characters, potentially leading to arbitrary code execution. This is related to an incomplete fix for CVE-2022-46387.

How urgent is CVE-2023-39150?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-46387 CRITICAL 9.8 UPGRADE UPGRADE ConEmu through 220807 and Cmder before 1.3.21 report the title of the terminal, including control characters,

References

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