CVE-2022-27966: Xshell v7.0.0099 and below contains a binary hijack vulnerability which allows attackers to execute arbitrary

Q: How do I fix CVE-2022-27966?

xshell: upgrade to newer than 7.0.0099. Exact commands for each OS are on this page.

Q: Is CVE-2022-27966 being exploited?

CVE-2022-27966 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-2022-27966 affect?

CVE-2022-27966 affects xshell. Severity is medium (CVSS 6.5). Xshell v7.0.0099 and below contains a binary hijack vulnerability which allows attackers to execute arbitrary code via a crafted .exe file.

Q: How urgent is CVE-2022-27966?

Priority 38/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2022-27966 is a medium-severity flaw (CVSS 6.5) affecting xshell. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Xshell v7.0.0099 and below contains a binary hijack vulnerability which allows attackers to execute arbitrary code via a crafted .exe file.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-428
Published	2022-03-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netsarang

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

Am I affected?

Timeline

2022-03-31 23:15 UTCPublished CVE record published
2026-06-17 04:37 UTCUpdated Record last modified

netsarang xshell UPGRADE

Affected: <= 7.0.0099

Fixed in: newer than 7.0.0099

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 7.0.0099 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xshell

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-2022-27966?

xshell: upgrade to newer than 7.0.0099. Exact commands for each OS are on this page.

Is CVE-2022-27966 being exploited?

CVE-2022-27966 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-2022-27966 affect?

CVE-2022-27966 affects xshell. Severity is medium (CVSS 6.5). Xshell v7.0.0099 and below contains a binary hijack vulnerability which allows attackers to execute arbitrary code via a crafted .exe file.

How urgent is CVE-2022-27966?

Priority 38/100. Public exploit reference

Related CVEs

CVE-2021-42095 HIGH 7.5 UPGRADE Xshell before 7.0.0.76 allows attackers to cause a crash by triggering rapid changes to the title bar.
CVE-2021-37326 MEDIUM 5.3 DOWNGRADE NetSarang Xshell 7 before Build 0077 includes unintended code strings in paste operations.

References

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