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CVE-2018-8151

19
FAUCET Score

CVE-2018-8151 is an information disclosure vulnerability affecting Microsoft Exchange Server, stemming from improper handling of objects in memory. This medium-severity vulnerability has a CVSS score of 4.3, indicating a network-based attack requiring user interaction, with a potential impact of low confidentiality loss. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion, though it was mentioned in a single media article regarding Microsoft's May 2018 Patch Tuesday.

Impacted Technologies

VendorProductVersion(s)CPE
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2010:sp3:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_19:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_20:*:*:*:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2013:sp1:*:*:*:*:*:*
2016CPE matchmatch criteria
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.53%
Probability of exploitation in next 30 days
EPSS Percentile
94.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0853 is in the 98th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Exchange Server 2016 Cumulative Update 8
View patch
microsoftpatch availablevia msrc
Product: Microsoft Exchange Server 2013 Cumulative Update 19
View patch
microsoftpatch availablevia msrc
Product: Microsoft Exchange Server 2013 Service Pack 1
View patch
microsoftpatch availablevia msrc
Product: Microsoft Exchange Server 2016 Cumulative Update 9
View patch
microsoftpatch availablevia msrc
Product: Microsoft Exchange Server 2013 Cumulative Update 20
View patch
microsoftpatch availablevia msrc
Product: Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 21
View patch

Vendor Advisories (1)

microsoft2018-May/CVE-2018-8151Important

Microsoft Exchange Memory Corruption Vulnerability

May 8, 2018

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2018-8151
PatchVendor Advisory
securityfocus.com / bid/104042
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040850
Third Party AdvisoryVDB Entry