Kerberos in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 Gold and 1511 mishandles password changes, which allows physically proximate attackers to bypass authentication, and conduct decryption attacks against certain BitLocker configurations, by connecting to an unintended Key Distribution Center (KDC), aka "Windows Kerberos Security Feature Bypass."
CVE-2015-6095
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.9 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:L/Au:N/C:N/I:C/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 4.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 4.9MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 4.9(low)
- EG Risk
- 43(Track)EG Risk 43/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity49% × 45%Exploitation40% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 4%
- EPSS %ILE
- 90%
- KEV
- Not listed
Published
November 11, 2015
Last Modified
May 6, 2026
References (4)
- secure@microsofthttp://www.securitytracker.com/id/1034125
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-122
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1034125
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-122
Data Freshness Timeline
(refreshed 7× in last 7d / 27× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 120 total refreshes for this CVE.
- 2026-08-21 23:44 UTCEPSS rescore
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- 2026-08-19 16:59 UTCEPSS rescore
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- 2026-07-26 13:54 UTCEG score recompute▲ 4.90
- 2026-07-25 14:13 UTCEPSS rescore
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- 2026-07-23 01:19 UTCEG score recompute
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- 2026-07-22 21:59 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCJackOfMostTrades/blueboxFirst seen Feb 18, 2016
Automated Exploit Toolkit for CVE-2015-6095 and CVE-2016-0049
Open source ↗
Frequently asked(4)
What is CVE-2015-6095?
When was CVE-2015-6095 disclosed?
Is CVE-2015-6095 actively exploited?
How do I remediate CVE-2015-6095?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2015-6095
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