CVE-2020-1242
MEDIUMCVSS 5.3/10EPSS 3.77%
Last modified
CVE-2020-1242 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.. EPSS estimates a 3.77% chance of exploitation in the next 30 days.
Description
An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Edge | All versions |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1242Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1242Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-1242?
An information disclosure vulnerability exists in the way that Microsoft Edge handles cross-origin requests, aka 'Microsoft Edge Information Disclosure Vulnerability'.
How severe is CVE-2020-1242?
CVE-2020-1242 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 3.77% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1242?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-12414IndexedDB should be cleared when leaving private browsing mo…6.5
- CVE-2020-12415When "%2F" was present in a manifest URL, Firefox's AppCache…6.5
- CVE-2020-12416A VideoStreamEncoder may have been freed in a race condition…8.8
- CVE-2020-12417Due to confusion about ValueTags on JavaScript Objects, an o…8.8
- CVE-2020-12418Manipulating individual parts of a URL object could have cau…6.5
- CVE-2020-12419When processing callbacks that occurred during window flushi…8.8
- CVE-2020-12420When trying to connect to a STUN server, a race condition co…8.8
- CVE-2020-12421When performing add-on updates, certificate chains terminati…6.5
- CVE-2020-12422In non-standard configurations, a JPEG image created by Java…8.8
- CVE-2020-12423When the Windows DLL "webauthn.dll" was missing from the Ope…7.8
- CVE-2020-12424When constructing a permission prompt for WebRTC, a URI was …6.5
- CVE-2020-12425Due to confusion processing a hyphen character in Date.parse…6.5
Are you affected by CVE-2020-1242?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST