Known exploited vulnerability

CVE-2023-21715

highCVSS 3.1 7.3In CISA KEVEPSS 12%Published · Microsoft

The short answer

CVE-2023-21715 affects Microsoft Microsoft 365 Apps for Enterprise and is rated high (CVSS 7.3). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-02-14: attackers are using it, so patch it first. The vendor has linked a patch.

What it is

Microsoft Publisher Security Feature Bypass Vulnerability

Weakness: CWE-863.

Severity

7.3 high

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

Exploited (CISA KEV)

Yes, since Feb 14, 2023

Federal due date Mar 7, 2023

EPSS, next 30 days

12%

Higher than 96% of scored CVEs

How it can be exploited

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply updates per vendor instructions.

Affected products

Microsoft 365 Apps for Enterprise. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2023-21715 being exploited?

Yes. CISA added CVE-2023-21715 to its Known Exploited Vulnerabilities catalog on 2023-02-14, with a federal remediation due date of 2023-03-07.

How do I fix CVE-2023-21715?

CISA's required action: Apply updates per vendor instructions.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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