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Cybersecurity and Infrastructure Security Agency (CISA)

You are subscribed to Cybersecurity Advisories for Cybersecurity and Infras= tructure Security Agency. This information has recently been updated and is=
now available.

CISA Adds Six Known Exploited Vulnerabilities to Catalog [ https://www.cisa= .gov/news-events/alerts/2026/02/10/cisa-adds-six-known-exploited-vulnerabil= ities-catalog ] 02/10/2026 04:00 PM EST=20

CISA has added six new vulnerabilities to its Known Exploited Vulnerabiliti=
es (KEV) Catalog [ https://www.cisa.gov/known-exploited-vulnerabilities-cat= alog ], based on evidence of active exploitation.=C2=A0


* CVE-2026-21510 [ https://www.cve.org/CVERecord?id=3DCVE-2026-21510 ] Mi= crosoft Windows Shell Protection Mechanism Failure Vulnerability=20
* CVE-2026-21513 [ https://www.cve.org/CVERecord?id=3DCVE-2026-21513 ] Mi= crosoft MSHTML Framework Security Feature Bypass Vulnerability=20
* CVE-2026-21514 [ https://www.cve.org/CVERecord?id=3DCVE-2026-21514 ] Mi= crosoft Office Word Reliance on Untrusted Inputs in a Security Decision Vul= nerability=20
* CVE-2026-21519 [ https://www.cve.org/CVERecord?id=3DCVE-2026-21519 ] Mi= crosoft Windows Type Confusion Vulnerability=20
* CVE-2026-21525 [ https://www.cve.org/CVERecord?id=3DCVE-2026-21525 ] Mi= crosoft Windows NULL Pointer Dereference Vulnerability=20
* CVE-2026-21533 [ https://www.cve.org/CVERecord?id=3DCVE-2026-21533 ] Wi= ndows Remote Desktop Services Elevation of Privilege Vulnerability=C2=A0=20

These types of vulnerabilities are frequent attack vectors for malicious cy= ber actors and pose significant risks to the federal enterprise.=C2=A0

_Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk o=
f Known Exploited Vulnerabilities_ [ https://www.cisa.gov/binding-operation= al-directive-22-01 ] established the KEV Catalog as a living list of known = Common Vulnerabilities and Exposures (CVEs) that carry significant risk to = the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branc=
h (FCEB) agencies to remediate identified vulnerabilities by the due date t=
o protect FCEB networks against active threats. See the _BOD 22-01 Fact She= et_ [ https://www.cisa.gov/sites/default/files/publications/Reducing_the_Si= gnificant_Risk_of_Known_Exploited_Vulnerabilities_211103.pdf ] for more inf= ormation.=C2=A0

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all o= rganizations to reduce their exposure to cyberattacks by prioritizing timel=
y remediation of _KEV Catalog vulnerabilities_ [ https://www.cisa.gov/known= -exploited-vulnerabilities-catalog ] as part of their vulnerability managem= ent practice. CISA will continue to add vulnerabilities to the catalog that=
meet the _specified criteria_ [ https://www.cisa.gov/known-exploited-vulne= rabilities ].=C2=A0

This product is provided subject to this=C2=A0Notification [ https://www.ci= sa.gov/notification ]=C2=A0and this=C2=A0Privacy & Use [ https://www.cisa.g= ov/privacy-policy ]=C2=A0policy.

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Having trouble viewing this message?=C2=A0View it as a webpage [ https://co= ntent.govdelivery.com/accounts/USDHSCISA/bulletins/4093c1e ].=C2=A0 [ https= ://content.govdelivery.com/accounts/USDHS/bulletins/292141e ]

You are subscribed to updates from the Cybersecurity and Infrastructure Sec= urity Agency [ https://www.cisa.gov ] (CISA)
Manage Subscriptions [ https://public.govdelivery.com/accounts/USDHSCISA/su= bscriber/edit?preferences=3Dtrue#tab1 ]=C2=A0=C2=A0|=C2=A0=C2=A0Privacy Pol= icy [ https://www.cisa.gov/privacy-policy ]=C2=A0=C2=A0|=C2=A0 Help [ https= ://subscriberhelp.granicus.com/s/article/Subscriber-Help-Center ] [ https:/= /insights.govdelivery.com/Communications/Subscriber_Help_Center ]

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<title> CISA Adds Six Known Exploited Vulnerabilities to Catalog
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<p><img src=3D"https://content.govdelivery.com/attachments/fancy_images/U= SDHSCISA/2020/06/3486054/05152023-gov-delivery-banner-copy_original.png" al= t=3D"Cybersecurity and Infrastructure Security Agency (CISA)" title=3D"" wi= dth=3D"600" height=3D"100"></p>
<p>You are subscribed to Cybersecurity Advisories for Cybersecurity and I= nfrastructure Security Agency. This information has recently been updated a=
nd is now available.</p>
<div class=3D"rss_item" style=3D"margin-bottom: 2em;">
<div class=3D"rss_title" style=3D"font-weight: bold; font-size: 120%; margi=
n: 0 0 0.3em; padding: 0;"><a href=3D"https://www.cisa.gov/news-events/aler= ts/2026/02/10/cisa-adds-six-known-exploited-vulnerabilities-catalog" target= =3D"_blank" title=3D"CISA Adds Six Known Exploited Vulnerabilities to Catal= og" rel=3D"noopener">CISA Adds Six Known Exploited Vulnerabilities to Catal= og</a></div>
<div class=3D"rss_pub_date" style=3D"font-size: 90%; font-style: italic; co= lor: #666666; margin: 0 0 0.3em; padding: 0;">02/10/2026 04:00 PM EST</div> <div class=3D"rss_description" style=3D"margin: 0 0 0.3em; padding: 0;">
<div class=3D"OutlineElement Ltr SCXW169298289 BCX8">
<p>CISA has added six new vulnerabilities to its <a href=3D"https://www.cis= a.gov/known-exploited-vulnerabilities-catalog" target=3D"_blank" title=3D"K= nown Exploited Vulnerabilities (KEV) Catalog" rel=3D"noopener">Known Exploi= ted Vulnerabilities (KEV) Catalog</a>, based on evidence of active exploita= tion.=C2=A0</p>


<a href=3D"https://www.cve.org/CVERecord?id=3DCVE-2026-21510" target=3D"_bl= ank" title=3D"CVE-2026-21510" rel=3D"noopener">CVE-2026-21510</a> Microsoft=
Windows Shell Protection Mechanism Failure Vulnerability</li>

<a href=3D"https://www.cve.org/CVERecord?id=3DCVE-2026-21513" target=3D"_bl= ank" title=3D"CVE-2026-21513" rel=3D"noopener">CVE-2026-21513</a> Microsoft=
MSHTML Framework Security Feature Bypass Vulnerability</li>

<a href=3D"https://www.cve.org/CVERecord?id=3DCVE-2026-21514" target=3D"_bl= ank" title=3D"CVE-2026-21514" rel=3D"noopener">CVE-2026-21514</a> Microsoft=
Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerabil= ity</li>

<a href=3D"https://www.cve.org/CVERecord?id=3DCVE-2026-21519" target=3D"_bl= ank" title=3D"CVE-2026-21519" rel=3D"noopener">CVE-2026-21519</a> Microsoft=
Windows Type Confusion Vulnerability</li>

<a href=3D"https://www.cve.org/CVERecord?id=3DCVE-2026-21525" target=3D"_bl= ank" title=3D"CVE-2026-21525" rel=3D"noopener">CVE-2026-21525</a> Microsoft=
Windows NULL Pointer Dereference Vulnerability</li>

<a href=3D"https://www.cve.org/CVERecord?id=3DCVE-2026-21533" target=3D"_bl= ank" title=3D"CVE-2026-21533" rel=3D"noopener">CVE-2026-21533</a> Windows R= emote Desktop Services Elevation of Privilege Vulnerability=C2=A0</li>
</ul>
<p>These types of vulnerabilities are frequent attack vectors for malicious=
cyber actors and pose significant risks to the federal enterprise.=C2=A0</=

</div>
<div class=3D"OutlineElement Ltr SCXW169298289 BCX8">
<p><a href=3D"https://www.cisa.gov/binding-operational-directive-22-01"><u>= Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of=
Known Exploited Vulnerabilities</u></a> established the KEV Catalog as a l= iving list of known Common Vulnerabilities and Exposures (CVEs) that carry = significant risk to the federal enterprise. BOD 22-01 requires Federal Civi= lian Executive Branch (FCEB) agencies to remediate identified vulnerabiliti=
es by the due date to protect FCEB networks against active threats. See the=
<a href=3D"https://www.cisa.gov/sites/default/files/publications/Reducing_= the_Significant_Risk_of_Known_Exploited_Vulnerabilities_211103.pdf"><u>BOD = 22-01 Fact Sheet</u></a> for more information.=C2=A0</p>
</div>
<div class=3D"OutlineElement Ltr SCXW169298289 BCX8">
<p>Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges al=
l organizations to reduce their exposure to cyberattacks by prioritizing ti= mely remediation of <a href=3D"https://www.cisa.gov/known-exploited-vulnera= bilities-catalog"><u>KEV Catalog vulnerabilities</u></a> as part of their v= ulnerability management practice. CISA will continue to add vulnerabilities=
to the catalog that meet the <a href=3D"https://www.cisa.gov/known-exploit= ed-vulnerabilities"><u>specified criteria</u></a>.=C2=A0</p>
<p><span>This product is provided subject to this=C2=A0</span><a href=3D"ht= tps://www.cisa.gov/notification" target=3D"_blank" title=3D"Notification" r= el=3D"noopener">Notification</a><span>=C2=A0and this=C2=A0</span><a href=3D= "https://www.cisa.gov/privacy-policy" target=3D"_blank" title=3D"Privacy &a= mp; Use" rel=3D"noopener">Privacy &amp; Use</a><span>=C2=A0policy.</span></=

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