Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2022-34717: Microsoft Office Remote Code Execution Vulnerability

56
This month
HIGH 8.8WATCHLISTMITIGATEDOWNGRADEDOWNGRADE

CVE-2022-34717 is a high-severity flaw (CVSS 8.8) affecting 365 apps, office, office long term servicing channel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Microsoft Office Remote Code Execution Vulnerability

Why this priority

  • High severity
  • On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance2.0% (top 19%)
CISA exploited listNo
Published2022-08-09
Last modified2026-11-02
Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Share: LinkedIn · X · Reddit

Last updated 2026-11-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

microsoft 365 apps MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy 365-apps || rpm -q 365-apps || 365-apps --version
No fixed or unaffected release known
Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.
microsoft office DOWNGRADE
Affected: 2013 sp1 · 2016 · 2019
Fixed in: no fixed release known
Safe to downgrade to: a release before 2013
1. Check installed version
apt-cache policy office || rpm -q office || office --version
2. No fixed release: DOWNGRADE to a release before 2013 (Debian / Ubuntu)
apt-cache madison office sudo apt install office=<VERSION_BEFORE_2013> sudo apt-mark hold office
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list office sudo dnf downgrade office-<VERSION_BEFORE_2013> sudo dnf versionlock add office
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
microsoft office long term servicing channel DOWNGRADE
Affected: 2021
Fixed in: no fixed release known
Safe to downgrade to: a release before 2021
1. Check installed version
apt-cache policy office-long-term-servicing-channel || rpm -q office-long-term-servicing-channel || office-long-term-servicing-channel --version
2. No fixed release: DOWNGRADE to a release before 2021 (Debian / Ubuntu)
apt-cache madison office-long-term-servicing-channel sudo apt install office-long-term-servicing-channel=<VERSION_BEFORE_2021> sudo apt-mark hold office-long-term-servicing-channel
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list office-long-term-servicing-channel sudo dnf downgrade office-long-term-servicing-channel-<VERSION_BEFORE_2021> sudo dnf versionlock add office-long-term-servicing-channel
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
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-2022-34717?

365 apps: mitigate or apply the listed mitigation; office: downgrade or apply the listed mitigation; office long term servicing channel: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-34717 being exploited?

CVE-2022-34717 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-2022-34717 affect?

CVE-2022-34717 affects 365 apps, office, office long term servicing channel. Severity is high (CVSS 8.8). Microsoft Office Remote Code Execution Vulnerability

How urgent is CVE-2022-34717?

Priority 56/100. High severity; On your watchlist

Software pages

Microsoft Office vulnerabilities

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.