CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based Decryption

highCVSS 7.5CVE-2026-9076

CSIRTS triage

Other

What: The vulnerability is an out-of-bounds read in CMS Password-Based Decryption.
Who is affected: Deployments using CMS for password-based decryption.
Urgency: Remediation is high urgency due to the high severity rating.
Action: Apply the latest patches for CMS.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-9076

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-90760.71% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-9076	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[UPDATE] [high] OpenSSL: Multiple Vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Splunk products (20 August 2026)cert-fr-avis
high[NEW] [high] IBM App Connect Enterprise: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in IBM products (July 24, 2026)cert-fr-avis
unknownMultiple vulnerabilities in Oracle Database Server (July 23, 2026)cert-fr-avis
unknownMultiple vulnerabilities in Tenable Identity Exposure (June 24, 2026)cert-fr-avis

Recent advisories for Out-of-Bounds Read in

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-49509: Out-of-bounds read vulnerability in Samsung Opensource Escargot allows Overread Buffers. This …nvd · 2026-09-04
highCVE-2026-85455: MOOS core-moos through 10.4.0 contains a buffer over-read vulnerability in CMOOSCommPkt where …nvd · 2026-09-03
highCVE-2026-64200: There is an out-of-bounds read vulnerability in DASYLab due to improper validation of user-sup…nvd · 2026-09-03
highCVE-2026-64199: There is an out-of-bounds read vulnerability in DASYLab due to improper validation of user-sup…nvd · 2026-09-03
highCVE-2026-64198: There is an out-of-bounds read vulnerability in DASYLab due to improper validation of user-sup…nvd · 2026-09-03
mediumCVE-2026-84968: An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an un…nvd · 2026-09-03