CVE-2022-44713
Published: 13 December 2022
Summary
CVE-2022-44713 is a high-severity Authentication Bypass by Spoofing (CWE-290) vulnerability in Microsoft Office. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 6.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-44713 is a spoofing vulnerability in Microsoft Outlook for Mac. It is tracked under CWE-290 and received a CVSS 3.1 base score of 7.5, driven by a network attack vector, low attack complexity, and the absence of required privileges or user interaction, resulting in high integrity impact without affecting confidentiality or availability.
An unauthenticated remote attacker can exploit the flaw to perform spoofing actions that compromise the integrity of email or related data processed by the application. The attack requires no user interaction, allowing an adversary to inject or alter content that the client accepts as authentic.
Microsoft has published official mitigation details and guidance in its security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-44713.
EPSS for the CVE is currently 0.1170 with a recorded peak of 0.1211.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-47647
Vulnerability details
Microsoft Outlook for Mac Spoofing Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Reveals spoofed logon attempts through unexpected previous logon timestamps upon legitimate login.
Training specifically addresses recognizing spoofed communications and phishing that enable authentication bypass.
Requiring verifiable identity evidence at appropriate assurance levels makes it substantially harder for attackers to successfully spoof or impersonate users to obtain accounts.
Unique device authentication makes successful spoofing of device identity substantially more difficult to achieve.
Unique identification of non-organizational users reduces the feasibility of authentication bypass by spoofing.
Unique identification and authentication of services before communications makes spoofing of service identities substantially harder.
Isolated trusted path ensures the user interacts only with genuine system components, preventing spoofing of authentication interfaces or prompts.
Directly counters DNS response spoofing by requiring cryptographic origin authentication artifacts from the authoritative source.