CVE-2019-1445
CVE-2019-1445 is a medium-severity vulnerability in Microsoft Office Online Server with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-346.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-346
- Affected product: Microsoft Office Online Server
- Published:
- Last modified:
Description
A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications handlers correctly, aka 'Microsoft Office Online Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-1447.
Frequently asked questions
- What is CVE-2019-1445?
- A spoofing vulnerability exists when Office Online does not validate origin in cross-origin communications handlers correctly, aka 'Microsoft Office Online Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-1447.
- How severe is CVE-2019-1445?
- CVE-2019-1445 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2019-1445 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-1445?
- CVE-2019-1445 affects Microsoft Office Online Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-1445?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2019-1445 published?
- CVE-2019-1445 was published on 2019-11-12 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*
More vulnerabilities in Microsoft Office Online Server
- CVE-2023-21716 — Critical (CVSS 9.8): Microsoft Word Remote Code Execution Vulnerability
- CVE-2019-1205 — Critical (CVSS 9.8): A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in…
- CVE-2022-41106 — High (CVSS 8.8): Microsoft Excel Remote Code Execution Vulnerability
- CVE-2022-21840 — High (CVSS 8.8): Microsoft Office Remote Code Execution Vulnerability
- CVE-2020-1583 — High (CVSS 8.8): An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of its memory. An…
- CVE-2020-1495 — High (CVSS 8.8): A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle…
All CVEs affecting Microsoft Office Online Server →
Other CWE-346 vulnerabilities
- CVE-2026-42901 — Critical (CVSS 10.0): Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-6508 — Critical (CVSS 9.8): Origin Validation Error vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows…
- CVE-2026-2790 — Critical (CVSS 9.8): Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR…
- CVE-2022-50925 — Critical (CVSS 9.8): Prowise Reflect version 1.0.9 contains a remote keystroke injection vulnerability that allows attackers to send…
- CVE-2025-30466 — Critical (CVSS 9.8): This issue was addressed through improved state management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS…
- CVE-2024-8487 — Critical (CVSS 9.8): A Cross-Origin Resource Sharing (CORS) vulnerability exists in modelscope/agentscope version v0.0.4. The CORS…