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CVE-2023-36780

21
FAUCET Score

CVE-2023-36780 is a Remote Code Execution vulnerability affecting Microsoft Skype for Business Server. With a CVSS score of 7.2 (HIGH), it allows a highly privileged attacker to execute arbitrary code remotely without user interaction. While not currently listed in CISA's KEV catalog or having public exploit code, it has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
2015CPE matchmatch criteria
cpe:2.3:a:microsoft:skype_for_business_server:2015:cumulative_update_13:*:*:*:*:*:*
2019CPE matchmatch criteria
cpe:2.3:a:microsoft:skype_for_business_server:2019:cumulative_update_7:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.56%
Probability of exploitation in next 30 days
EPSS Percentile
83.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0256 is in the 81st percentile among its peer group of 5,538 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 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 (3)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Skype for Business Server 2019 CU7Fixed in: 7.0.246.530
View patch
microsoftpatch availablevia msrc
Product: Skype for Business Server 2015 CU13Fixed in: 6.0.9319.869
View patch

Vendor Advisories (1)

microsoft2023-Oct/CVE-2023-36780Important

Skype for Business Remote Code Execution Vulnerability

Oct 10, 2023

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2023-36780
PatchVendor Advisory