Buffer overflow in Microsoft Edge
CVE-2016-7203
The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.
Vulnerability class: Buffer Overflow
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: 0.649 (99.2th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.591 · newest: 0.649 · change: +0.058
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129 (vendor-advisory)
- www.exploit-db.com/exploits/40787/ (exploit)
- www.securityfocus.com/bid/94039 (vdb-entry)
- www.securitytracker.com/id/1037245 (vdb-entry)
Frequently asked questions
- What is CVE-2016-7203?
- CVE-2016-7203 is a high-severity vulnerability in Microsoft Edge, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2016-11-10.
- How severe is CVE-2016-7203?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-7203 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.