Dashboard / CVE-2026-85873

CVE-2026-85873

MEDIUM
MEDIUM Priority: 0.06 BB Relevance: 63/100
Published: 2026-10-13 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: None
A: None

Description

Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.

Weakness Classification (1)

Affected Software (9)

VendorProductVersion
Microsoft Skype for Business Server 2015 CU13 9319.0 < 6.0.9319.886
Microsoft Skype for Business Server 2015 CU13 9319.0 < 6.0.9319.886
Microsoft Skype for Business Server 2015 CU13 9319.0 < 6.0.9319.886
Microsoft Skype for Business Server 2019 CU8 2046.0 < 7.0.2046.583
Microsoft Skype for Business Server 2019 CU8 2046.0 < 7.0.2046.583
Microsoft Skype for Business Server 2019 CU8 2046.0 < 7.0.2046.583
Microsoft Skype for Business Server Subscription Edition CU1 2046.0 < 7.0.2046.889
Microsoft Skype for Business Server Subscription Edition CU1 2046.0 < 7.0.2046.889
Microsoft Skype for Business Server Subscription Edition CU1 2046.0 < 7.0.2046.889

References & Advisories (1)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.96%
Raw Score 0.009570
Percentile 61.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00957
2026-10-28
0.00957

Intelligence Sources

mitre ref →

External Links