CVE-2022-29777

Name: CVE-2022-29777
Creator: NVD / NIST
Published: 2022-06-02T14:15:51.12+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 6.85%

Last modified Jun 17, 2026

CVE-2022-29777 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a heap overflow via the component DesktopEditor/fontengine/fontconverter/FontFileBase.h.. EPSS estimates a 6.85% chance of exploitation in the next 30 days.

Description

Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a heap overflow via the component DesktopEditor/fontengine/fontconverter/FontFileBase.h.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

6.85%

93.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Onlyoffice	Core	<= 6.1.0.26
Onlyoffice	Document Server	<= 6.0.0

References

https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#601Release Notes, Third Party Advisory
https://github.com/ONLYOFFICE/core/commit/b17d5e860f30e8be2caeb0022b63be4c76660178Patch, Third Party Advisory
https://github.com/moehw/poc_exploits/tree/master/CVE-2022-29777Exploit, Third Party Advisory
https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#601Release Notes, Third Party Advisory
https://github.com/ONLYOFFICE/core/commit/b17d5e860f30e8be2caeb0022b63be4c76660178Patch, Third Party Advisory
https://github.com/moehw/poc_exploits/tree/master/CVE-2022-29777Exploit, Third Party Advisory

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29777?

Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a heap overflow via the component DesktopEditor/fontengine/fontconverter/FontFileBase.h.

How severe is CVE-2022-29777?

CVE-2022-29777 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.85% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29777?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-29777?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST