What is CVE-2017-0222?

CVE-2017-0222 is a high-severity vulnerability in Microsoft Internet_explorer, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2017-05-12.

How severe is CVE-2017-0222?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2017-0222 known to be exploited?

Yes. CVE-2017-0222 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Buffer overflow in Microsoft Internet_explorer

CVE-2017-0222

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This CVE ID is unique from CVE-2017-0226.

Vulnerability class: Buffer Overflow

EPSS: 0.296 (98.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Microsoft Internet_explorer — versions 9, 11
Microsoft Windows_10_1507
Microsoft Windows_10_1511
Microsoft Windows_10_1607
Microsoft Windows_10_1703
Microsoft Windows_7
Microsoft Windows_8.1
Microsoft Windows_rt_8.1
Microsoft Windows_server_2008 — versions r2
Microsoft Windows_server_2012 — versions r2

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-02-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-08-25.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2017-0222?: CVE-2017-0222 is a high-severity vulnerability in Microsoft Internet_explorer, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2017-05-12.
How severe is CVE-2017-0222?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2017-0222 known to be exploited?: Yes. CVE-2017-0222 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.