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CVE-2023-35373

17
FAUCET Score

CVE-2023-35373 is a Mono Authenticode Validation Spoofing Vulnerability affecting Microsoft Mono, allowing an attacker to bypass signature validation. With a CVSS score of 5.3 (Medium), this vulnerability requires low privileges and high attack complexity, but can lead to high integrity impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion, with only one media article mentioning it as part of a larger patch Tuesday release.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.12.0, < 6.12.0.200CPE matchmatch criteria
cpe:2.3:a:microsoft:mono:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
53.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 42nd percentile among its peer group of 1,428 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 (2)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Mono 6.12.0Fixed in: 6.12.0.200
View patch

Vendor Advisories (1)

microsoft2023-Jul/CVE-2023-35373Important

Mono Authenticode Validation Spoofing Vulnerability

Jul 11, 2023

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2023-35373
PatchVendor Advisory