PatchaPalooza

CVE-2023-28286: Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability

CVE-2023-28286 is a remote code execution vulnerability in Microsoft Edge (Chromium-based), rated Moderate by Microsoft, with a CVSS 3.1 base score of 6.1 (Medium). An attacker can exploit it remotely over the network, without any privileges and only if a user takes an action. Microsoft has not reported exploitation in the wild and rates exploitation as less likely. The EPSS model estimates a 0.58% probability of exploitation activity in the next 30 days, higher than 48% of all scored vulnerabilities. Microsoft released the fix on 24 March 2023, outside Patch Tuesday. It affects 2 products in 1 product family (Browser).

Key facts

CVE ID
CVE-2023-28286
Severity
Medium CVSS 6.1
Microsoft severity
Moderate
Impact
Remote Code Execution
Exploited in the wild
No
Publicly disclosed
No
Exploitation likelihood
Less Likely
Weakness
CWE-693
EPSS
0.58% (percentile 48%)
CISA KEV
Not listed
Released
Last updated
Patch Tuesday
March 2023 Patch Tuesday
Product families
Browser

CVSS score and vector

Microsoft scores CVE-2023-28286 at 6.1 (temporal 5.3) using CVSS 3.1. Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C

MetricValue
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
Confidentiality impactLow
Integrity impactLow
Availability impactNone
Exploit code maturityUnproven
Remediation levelOfficial fix
Report confidenceConfirmed

Frequently asked questions (Microsoft)

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of integrity (I:L)? What does that mean for this vulnerability?

The attacker is only able to modify the content of the vulnerable link to redirect the victim to a malicious site.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

The user would have to click on a specially crafted URL to be compromised by the attacker.

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?

The vulnerability is in the web server, but the malicious scripts execute in the victim’s browser on their machine.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L)? What does that mean for this vulnerability?

Limited information from the victim's browser associated with the vulnerable URL can be sent to the attacker by the malicious code.

What is the version information for this release?

Microsoft Edge Channel

Microsoft Edge Version

Based on Chromium Version

Date Released

Stable

111.0.1661.54

111.0.5563.110/.111

3/23/2023

Extended Stable

110.0.1587.78

110.0.5481.208

3/23/2023

Affected products (2)

Browser

ProductSecurity updateTypeFixed buildRestart
Microsoft Edge (Chromium-based)Release NotesSecurity Update111.0.1661.54No
Microsoft Edge (Chromium-based) Extended StableRelease NotesSecurity Update110.0.1587.78No

NIST NVD data

NVD status
Modified
NVD CVSS
6.1 (MEDIUM)
NVD weakness
CWE-693
Published to NVD
NVD last modified

Affected configurations (CPE)

ProductVulnerable versions
edge chromiumbefore 110.0.1587.78
edge chromiumbefore 111.0.1661.54

References

Acknowledgments

Revision history

VersionDateDescription
1.0Information published.

Sources