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Exploit Prevention conflict with Adobe Reader DC Protected Mode

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Start from today 10/July/2019, numeric of our users reported they got a Adobe Reader Protected Mode message which said cannot open in Protected Mode due to incompatibility. We can select "Always open with Protected Mode disabled" and open PDF file. Tested to disable Threat Prevention feature one by one and identified this is related to "Exploit Prevention" feature. PDF open with Protected Mode if this Exploit Prevention" feature is disabled. Please advise if this is related McAfee update or related to Adobe Reader DC update itself ? And any alternative or workaround on this ? Thanks.
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McAfee Employee chealey
McAfee Employee
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Message 2 of 6

Re: Exploit Prevention conflict with Adobe Reader DC Protected Mode

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Can you please check if this is relevant to you? - you'll also see a workaround mentioned:

https://community.mcafee.com/t5/Endpoint-Security-ENS/ENS-July-full-installer-prevents-Adobe-reader-...

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If this information was helpful in any way, or answered your question, will you please select "Accept as Solution" in my reply, or give kudos as appropriate, so together we can help other members?
McAfee Employee chealey
McAfee Employee
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Message 6 of 6

Re: Exploit Prevention conflict with Adobe Reader DC Protected Mode

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Hi all - KB91657 has now been published for this issue.

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If this information was helpful in any way, or answered your question, will you please select "Accept as Solution" in my reply, or give kudos as appropriate, so together we can help other members?
5 Replies
McAfee Employee chealey
McAfee Employee
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Message 2 of 6

Re: Exploit Prevention conflict with Adobe Reader DC Protected Mode

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Can you please check if this is relevant to you? - you'll also see a workaround mentioned:

https://community.mcafee.com/t5/Endpoint-Security-ENS/ENS-July-full-installer-prevents-Adobe-reader-...

Was my reply helpful?
If this information was helpful in any way, or answered your question, will you please select "Accept as Solution" in my reply, or give kudos as appropriate, so together we can help other members?

Re: Exploit Prevention conflict with Adobe Reader DC Protected Mode

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Thanks Chealey ! Not aware already posted by others on same topic.

I already excluded Adobe Reader from Exploit Prevention protection rule. Please advise how I can track the status if this is fixed by new release update coming soon ?

McAfee Employee chealey
McAfee Employee
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Message 4 of 6

Re: Exploit Prevention conflict with Adobe Reader DC Protected Mode

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I encourage you to raise an SR with support so that we can officially track it and we can pass your data on to our engineering team to help them with their investigation as well.

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If this information was helpful in any way, or answered your question, will you please select "Accept as Solution" in my reply, or give kudos as appropriate, so together we can help other members?
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Re: Exploit Prevention conflict with Adobe Reader DC Protected Mode

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Noted. Will do. And thanks again !

McAfee Employee chealey
McAfee Employee
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Message 6 of 6

Re: Exploit Prevention conflict with Adobe Reader DC Protected Mode

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Hi all - KB91657 has now been published for this issue.

Was my reply helpful?
If this information was helpful in any way, or answered your question, will you please select "Accept as Solution" in my reply, or give kudos as appropriate, so together we can help other members?
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