CVE-2022-29776 — Onlyoffice Document Server v6

Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a stack overflow via the component DesktopEditor/common/File.cpp.

01What is this vulnerability?

Onlyoffice Document Server v6.0.0 and below and Core 6.1.0.26 and below were discovered to contain a stack overflow via the component DesktopEditor/common/File.cpp.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-06-01T12:51:10.000Z
• Last modified: 2024-08-03T06:33:42.624Z

09References

• github.com — https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#601
• github.com — https://github.com/ONLYOFFICE/core/commit/88cf60a3ed4a2b40d71a1c2ced72fa3902a309…
• github.com — https://github.com/moehw/poc_exploits/tree/master/CVE-2022-29776