BlackTreeCVE Intelligence
August 2026 Patch TuesdayMSRC-2026-08-other-cbl-mariner-releasesNormal patch window

Microsoft · MSRC-2026-08-other-cbl-mariner-releases

Linked CVE review

Deploy Microsoft Other update for 21698-17084

Linked CVEs
1
Confirmed exploited
0
PoC or lab evidence
0
Maximum CVSS
6.2
Evidence is kept separate

Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.

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Confirmed exploitedCVSS above 9.0
CVE and descriptionSeverityExploit realityForecast and accessRemediation
CVE-2026-72522 Scheduled assessment
libexpat project libexpat: Out-of-bounds Read

libexpat before 2.8.3 has an out-of-bounds read and resultant infinite loop because low surrogates are treated the same as high surrogates during Unicode processing in the *_toUtf16 functions.

6.2 · CVSS 3.1 · MediumSource: CNANo confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.EPSS: 0.19% · 8.1th percentileForecast date: 2026-10-09LOCAL · LOW complexity · NONE privileges · NONE user interactionScheduledMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.Patch available. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/