Use After Free in Microsoft Edge
CVE-2017-0070
A remote code execution vulnerability exists in the way affected Microsoft scripting engines render when handling objects in memory in Microsoft browsers. These vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. This vulnerability is different from those described in CVE-2017-0010, CVE-2017-0015, CVE-2017-0032, CVE-2017-0035, CVE-2017-0067, CVE-2017-0071, CVE-2017-0094, CVE-2017-0131, CVE-2017-0132, CVE-2017-0133, CVE-2017-0134, CVE-2017-0136, CVE-2017-0137, CVE-2017-0138, CVE-2017-0141, CVE-2017-0150, and CVE-2017-0151.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.785 (99.6th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.677 · newest: 0.785 · change: +0.108
Affected products
- Microsoft Edge
- Microsoft Windows 10 — versions 1511, 1607
- Microsoft Windows Server 2016
- Microsoft Corporation Browser — versions Browser
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/96690 (VDB Entry, Third Party Advisory, vdb-entry)
- www.exploit-db.com/exploits/41623/ (exploit)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0070 (Patch, Vendor Advisory)
- www.securitytracker.com/id/1038006 (vdb-entry)
Frequently asked questions
- What is CVE-2017-0070?
- CVE-2017-0070 is a high-severity vulnerability in Microsoft Edge, classified under Use After Free. CVSS score: 7.5/10. Published 2017-03-17.
- How severe is CVE-2017-0070?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-0070 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.