A wave of community test results and vendor confirmations this week has put the latest Windows 11 cumulative update under a harsh spotlight: several SSDs can disappear from Windows during sustained, large write operations after installing the August 12, 2025 update (KB5063878), with a...
Within days of Microsoft’s August 2025 Patch Tuesday, a cluster of independent testers and community posts began documenting a worrying pattern: after installing the Windows 11 24H2 cumulative update (tracked as KB5063878, with a related preview package KB5062660), some NVMe SSDs momentarily or...
A wave of reproducible reports and a parallel burst of misinformation have combined to create one of the more consequential Patch Tuesday headaches in recent memory: Microsoft’s August 12, 2025 cumulative for Windows 11 (KB5063878) has been linked to SSDs disappearing under sustained, heavy...
Phison has publicly disowned a circulated advisory that claimed Windows 11’s August cumulative update was uniquely “killing” Phison‑based SSDs, while the vendor — and several independent labs — simultaneously confirm an industry‑wide storage regression tied to the August 12, 2025 cumulative...
Microsoft and several SSD vendors are investigating reports that the August 12, 2025 cumulative update for Windows 11 24H2 (KB5063878, OS Build 26100.4946) can trigger a reproducible storage regression where some SSDs vanish from the operating system during sustained, large sequential writes — a...
Microsoft has acknowledged an active investigation after multiple community researchers, test benches and SSD vendors reported that the Windows 11 August cumulative (commonly tracked as KB5063878, OS Build 26100.4946) can cause certain SSDs to vanish from the operating system during sustained...
The August cumulative for Windows 11 24H2 (KB5063878) has been linked by multiple independent testers and specialist outlets to a reproducible storage regression that, under sustained large write workloads, can make some NVMe SSDs — and a small number of HDDs in isolated reports — disappear from...
Phison has publicly acknowledged the storage failures linked to Microsoft’s August 2025 Windows 11 cumulative updates (identified as KB5063878 and related KB5062660) and says it is investigating the reports with industry partners while controllers that “may have been affected” are under review...
backup
data loss
dram-less
enterprise it
firmware
heavy-writes
hmb
kb5062660
kb5063878
nvme
patch
phison
rma
sequential-writes
ssd
storage
system compatibility
vendoradvisories
windows 11
Microsoft’s August cumulative for Windows 11 — released as KB5063878 (OS Build 26100.4946) — is now at the center of a rapidly developing reliability story: independent testers and multiple tech outlets report that, under sustained large writes (commonly cited around 50 GB and above), some NVMe...
24h2
backup
data integrity
data loss
data recovery
firmware
heavy-writes
it admin
kb5063878
known issue rollback
known issues
large-file-transfer
nvme
os build 26100.4946
phison
ssd
storage
storage regression
system administration
troubleshooting
update management
vendoradvisories
windows 11
Microsoft’s latest Windows 11 cumulative update has been linked by multiple community tests and vendor advisories to a storage regression that, under specific conditions, can make some NVMe SSDs disappear during large sustained writes — risking data corruption or loss — and has reignited a...
Microsoft’s August cumulative for Windows 11 (the KB5063878 rollup, OS Build 26100.4946) has been linked by independent testers and enthusiast outlets to a storage regression that can make some SSDs temporarily — and in a minority of cases permanently — disappear during sustained large writes...
Microsoft’s August cumulative for Windows 11 (KB5063878, OS Build 26100.4946) has been tied by multiple independent community tests and tech outlets to a serious storage regression: under sustained, large sequential writes some SSDs can stop responding, disappear from Windows, and — in a...
24h2
backup
backup and recovery
data corruption
data integrity
data security
disk management
dram-less ssd
drive visibility
enterprise deployment
event viewer
firmware
heavy-writes
hmb
independent reporting
it administration
kb5063878
known issue rollback
microsoft support
monitoring
nvme
nvme ssd
os build 26100.4946
phison
phison controllers
release health
smart data
ssd
ssd firmware
ssd-regression
storage regression
troubleshooting
vendoradvisoriesvendor management
windows 11
windows update
wsus-sccm
Microsoft’s August cumulative for Windows 11 has left a trail of disrupted installs and disappearing NVMe drives, and Phison — maker of widely used SSD controllers including the PS5012‑E12 — has confirmed it is investigating reports that the updates KB5063878 and KB5062660 can trigger...
Microsoft’s August cumulative for Windows 11 — KB5063878 (OS Build 26100.4946) — has been linked by independent testers and enthusiast communities to a reproducible and severe storage fault: under sustained large sequential writes (reports center around the 50 GB range), certain NVMe SSDs—and a...
backup
bsod
data corruption
data integrity
dram-less
dram-less ssd
drive-disappearance
driver regression
enterprise deployment
firmware
gaming storage
heavy i/o
hmb
host memory buffer
it administration
kb5063878
known issue rollback
known issues
large i/o
nvme ssd
os build 26100.4946
phison
phison controllers
sccm
ssd disappearance
ssd stability
staged rollout
storage issues
storage regression
system update
telemetry
vendoradvisoriesvendor management
western digital sn580
western digital sn770
windows 11
windows update
wsus
Microsoft’s August Windows 11 patch cycle has produced two very different but equally alarming headlines this week: an emergency mitigation for enterprise update delivery failures, and community reports that the same cumulative update may be triggering storage devices to become unreadable or...
0x80240069
august 2025
backup
data loss
dram-less
enterprise it
installation issues
kb5063878
kernel drivers
mecm
nvme
phison
release health
sccm
servicing stack
ssd failure
storage issues
vendoradvisories
windows 11
wsus
Microsoft's August cumulative update for Windows 11 (KB5063878, OS Build 26100.4946) has been linked in community reports to NVMe SSDs becoming inaccessible after sustained, heavy file writes — an issue that has reopened concerns about storage stability in the 24H2 branch and forced a cautious...
Siemens has published a security advisory for Opcenter Quality that maps seven distinct CVEs affecting SmartClient modules (Opcenter QL Home), SOA Audit and SOA Cockpit — the vulnerabilities range from incorrect authorization and insufficient session expiration to support for legacy TLS...
Siemens’ SIPROTEC 5 family has resurfaced in industry advisories after researchers and the vendor disclosed a vulnerability that allows attackers with physical access to exhaust a device’s memory via its local USB port, causing temporary loss of network responsiveness; the issue is tracked as...
Siemens' widely deployed use of Wibu-Systems CodeMeter Runtime has again drawn scrutiny after a local privilege-escalation flaw (CVE-2025-47809) was published that can let an unprivileged user gain elevated access immediately after an unprivileged installation when the CodeMeter Control Center...
build server security
change control
codemeter
codemeter 8.30a
cve-2025-47809
ics security
industrial control systems
local exploit
ot security
patch management
privilege
privilege escalation
siemens
siemens productcert
simatic
threat hunting
uac
vendoradvisories
wincc oa
windows security
Siemens' COMOS engineering platform is again at the center of vendor and national cybersecurity advisories after an out‑of‑bounds write in a third‑party graphics library — tracked as CVE‑2024‑8894 — was linked to COMOS deployments and republished by authorities, raising fresh questions about...