CVE-2023-36761
Exploited in the wild. In CISA KEV since 2023‑09‑12. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Microsoft Word Information Disclosure Vulnerability
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Listed as exploited in the wild since 2023-09-12.
US federal agencies must remediate by 2023-10-03.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
20% chance of exploitation activity in the next 30 days, which ranks it in the 97th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
8 events over 1017 days, from the signal feeds we watch.
- OpenVAS check added
- EPSS band changelow → moderate
- Patch availablerecord updated
- Added to CISA KEVpublished, weakness classified, att&ck mapped
Affected products
- Microsoft Office LTSC 2021Consumer Software / productivity
- Microsoft 365 Apps for EnterpriseConsumer Software / productivity
- Microsoft Word 2016Consumer Software / productivity
- Microsoft Word 2013 Service Pack 1Consumer Software / productivity
- office long term servicing channelOperating Systems / windows
- wordConsumer Software / productivity
- Microsoft Word 2013 RT Service Pack 1Consumer Software / productivity
And 8 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Scored 6.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction RequiredA user must click a link, open a file, or perform some action
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity NoneNo integrity impact
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationlow confidence
Sources
Watch the software you run.
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