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CVE-2026-42914General(microsoft / windows_10_1607)

LOWCVSS 5.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_10_1607 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • windows_10_1607
  • windows_10_1809
  • windows_10_21h2
  • windows_10_22h2

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-06-09); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_23h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2012windows_server_2016

2 versions affected across 13 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-09: 1Mentions · 2026-06-10: 1Patch / Workaround · 2026-06-10: 106-0906-10
Signal classification2 categories
General
150.0%
Patch
150.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-06-091
General1
2026-06-101
Patch1
Full discourse2 posts
  • Andrew@4ndr3w6S
    General

    Thanks @msftsecresponse for recognizing our work on Kerberos 💪 @exploitph was left out of the acknowledgments, but I’m sure we’ll get that fixed! https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-42903 https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-42914 https://t.co/uFrINFDWDd

    Post summary

    The user shares Microsoft security advisory links for two Kerberos‑related CVEs and acknowledges contributors, without detailing exploits, patches, or technical specifics.

    33134349.9K
    3.1K followersView on X
  • WindowsForum@windowsforum
    Patch

    🪟 Kerberos DoS (CVE-2026-42914) being “Important” is Microsoft’s way of saying “don’t ignore me, or your logins will.” Fix it before auth turns into a silent black hole. https://windowsforum.com/threads/cve-2026-42914-patch-microsoft-kerberos-dos-important-before-it-disrupts-identity.424825/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #PatchTuesday #WindowsKerberos #Cve202642914 #KerberosDenialOfService https://t.co/FeQdaSsZoO

    Post summary

    The post stresses that the Kerberos DoS vulnerability (CVE‑2026‑42914) is important and urges users to apply Microsoft’s patch before authentication failures occur.

    0000041
    1.2K followersView on X
CPE platform detail24 entries

24 of 24 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607--x64
OSmicrosoftwindows_10_1607--x86
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
OSmicrosoftwindows_10_21h2--arm64
OSmicrosoftwindows_10_21h2--x64
OSmicrosoftwindows_10_21h2--x86
OSmicrosoftwindows_10_22h2--arm64
OSmicrosoftwindows_10_22h2--x64
OSmicrosoftwindows_10_22h2--x86
OSmicrosoftwindows_11_23h2--arm64
OSmicrosoftwindows_11_23h2--x64
OSmicrosoftwindows_11_24h2--arm64
OSmicrosoftwindows_11_24h2--x64
OSmicrosoftwindows_11_25h2--arm64
OSmicrosoftwindows_11_25h2--x64
OSmicrosoftwindows_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64
OSmicrosoftwindows_server_2012---
OSmicrosoftwindows_server_2012r2--
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025--x64

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