Two New Windows Zero-Days Exploited in the Wild — One Affects Every Version Ever Shipped

Submitted ⁨⁨14⁩ ⁨hours⁩ ago⁩ by ⁨Delta_V@lemmy.world⁩ to ⁨technology@lemmy.world⁩

https://thehackernews.com/2025/10/two-new-windows-zero-days-exploited-in.html

…“The vulnerable driver ships with every version of Windows, up to and including Server 2025,” Adam Barnett, lead software engineer at Rapid7, said. “Maybe your fax modem uses a different chipset, and so you don’t need the Agere driver? Perhaps you’ve simply discovered email? Tough luck. Your PC is still vulnerable, and a local attacker with a minimally privileged account can elevate to administrator.”…

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SnotFlickerman@lemmy.blahaj.zone ⁨13⁩ ⁨hours⁩ ago
To anyone misreading this, these exploits were patched yesterday and thus were included as the final patch for Windows 10 before the extended security updates requirements kick in.

Known exploits are always reported to the company first to give them time to patch it before releasing info on the exploits.

All Windows 10 users will continue to have access to the patches in this final freely available patch Tuesday for Windows 10. They just can’t get new updates without joining the ESU program.

I hate Microsoft too and only use Linux, but let’s stop the circlejerk of false claims here please and thank you.

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- sourhill@lemmy.sdf.org ⁨12⁩ ⁨hours⁩ ago
  Zero-day means the company had 0 days to fix it before the exploits were made public. Maybe the headline is wrong?
  
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  - MrNesser@lemmy.world ⁨12⁩ ⁨hours⁩ ago
    Nope 0 days means
    
    Zero-day vulnerability: A software flaw that attackers discover before the developer does.
    
    Zero-day exploit: The method hackers use to take advantage of this unknown vulnerability.
    
    Zero-day attack: An attack that uses a zero-day exploit to damage a system, steal data, or plant malware before a patch is available. This is a serious risk because no defenses are in place for this specific flaw yet.
    
    The first is the most common one found in the press and is usually reported to the company so they can patch it, before press release.
    
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  - SnotFlickerman@lemmy.blahaj.zone ⁨11⁩ ⁨hours⁩ ago
    Perhaps, either that or they made a very quick fix making updates to address them the day before this patch release.
    
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NotMyOldRedditName@lemmy.world ⁨14⁩ ⁨hours⁩ ago
People have probably been sitting on exploits for months or longer. There will probably be another wave after the 1 year extended support ends.

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paraphrand@lemmy.world ⁨8⁩ ⁨hours⁩ ago
It’s interesting that this supposedly goes back to Windows 3.1?

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- SnotFlickerman@lemmy.blahaj.zone ⁨7⁩ ⁨hours⁩ ago
  Other articles make more clear why that is.
  
  cyberpress.org/windows-agere-modem-driver-0-day-f…
  
  Rather than issuing a traditional patch for each vulnerability, Microsoft’s October cumulative update completely removes the ltmdm64.sys driver from affected systems.
  
  As a result, all fax modem hardware relying on the Agere Modem driver will cease to function. While mail and messaging over IP have largely supplanted analog modems, some industrial and legacy applications still depend on fax modems.
  
  Organizations must therefore audit their environments for any remaining modem dependencies and either migrate to supported alternatives or implement workarounds where available.
  
  Microsoft’s advisory explicitly recommends that customers eliminate any reliance on the deprecated hardware to avoid service disruptions.
  
  So maybe not all the way back to the original release, but back to the first release that included this specific telephony modem driver, ltmdm64.sys. If I recall correctly, Windows 3.1 brought networking capabilities.
  
  However, another article claims it has only been shipped with every version of Windows since 2006.
  
  thestack.technology/windows-users-hacked-due-to-l…
  
  CVE-2025-24990 was credited to a security researcher going by the handle @shitsecure who told The Stack by DM “it’s a driver from 2006, never changed… I think it was historically shipped with everything, although that doesn’t make sense at all.”
  
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  - paraphrand@lemmy.world ⁨7⁩ ⁨hours⁩ ago
    Thanks for the details!
    
    I wonder how often they clean stuff up like this. That crossed my mind earlier, I’m sure there is a bunch of “dormant” software that could be cleaned out or made optional in some way.
    
    I’m sure the making it optional idea is easier said than done. Especially from a standpoint of discoverability and usability.
    
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- EndlessNightmare@reddthat.com ⁨3⁩ ⁨hours⁩ ago
  I was curious about the “every version ever shipped.”
  
  This gets really old school.
  
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- Agent641@lemmy.world ⁨5⁩ ⁨hours⁩ ago
  Personally I blame Dave Plummer.
  
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- Delta_V@lemmy.world ⁨7⁩ ⁨hours⁩ ago
  makes you wonder if/how/by who its been used all these years
  
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  - deathbird@mander.xyz ⁨4⁩ ⁨hours⁩ ago
    I expect it’s stuff like ATMs, Coinstar machines. Things that may need to phone home regularly but don’t need to sit online constantly.
    
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zleap@techhub.social ⁨14⁩ ⁨hours⁩ ago
@Delta_V
It will be interesting what happens with this Windows 10 end of support, this just happens to crop up the day after support ends.
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- SnotFlickerman@lemmy.blahaj.zone ⁨13⁩ ⁨hours⁩ ago
  The exploits are addressed in the patch released yesterday, on the final day of support.
  
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- Delta_V@lemmy.world ⁨14⁩ ⁨hours⁩ ago
  yeah, the timing is ‘interesting’
  
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- Alphane_Moon@lemmy.world ⁨6⁩ ⁨hours⁩ ago
  They will continue to releases major security updates for Windows 10 as long as it has double digit installed base share.
  
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Rhaedas@fedia.io ⁨13⁩ ⁨hours⁩ ago
So stick with my Linux and don't boot into Windows again. Got it.

Lots of these exploits can be very specific cases so aren't going to threaten the average user. However the point is, Windows 10 is now a huge target and there are lots who would love to take advantage of a freshly open gate.

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- FreedomAdvocate@lemmy.net.au ⁨12⁩ ⁨hours⁩ ago
  This is fixed, and the attacked required physical access to the hardware.
  
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  - frog_meister@lemmings.world ⁨58⁩ ⁨minutes⁩ ago
    These are fixed, but microsoft still includes backdoors for Israel.
    
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FreedomAdvocate@lemmy.net.au ⁨12⁩ ⁨hours⁩ ago
Fixed and required physical access to the machine. If someone malicious has physical access to your machine you’re already done.

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- utopiah@lemmy.world ⁨4⁩ ⁨hours⁩ ago
  Does it mean you don’t think login password with physical token with disk encryption work?
  
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Rentlar@lemmy.ca ⁨13⁩ ⁨hours⁩ ago
And it’s not likely to be the last.

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yoriaiko@lemmy.blahaj.zone ⁨13⁩ ⁨hours⁩ ago
If true:

Totally none did wait for most popular win10 end supports…

If fake:

Totally none sus this for being fake scarecrow against anyone who would like to stay on non-service, standalone system.

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