CVE-2026-6727
mediumpriority · track · 0EPSS 0.002 · 4 %ileDEEUJPNLEPSS · scored 2026-10-27
A timing side-channel vulnerability exists in the RSA OAEP decryption implementation. A privileged local attacker with access to the TPM command interface may be able to exploit timing differences to recover information that could allow decryption of ciphertexts encrypted to TPM-managed RSA keys, including the RSA Endorsement Key (EK), including import blobs, credential blobs, and session salts. Under certain conditions, this may also enable the forgery of TPM 2.0 attestations. Refer to TCGVRT0011.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (54)
Products and version ranges known to be affected.
- Microsoft Exchange Server 2016 Cumulative Update 23all versionscert_bundDEcpe:/a:microsoft:exchange:server_2016_cumulative_update_23
- Microsoft Exchange Server 2019 Cumulative Update 14all versionscert_bundDEcpe:/a:microsoft:exchange:server_2019_cumulative_update_14
- Microsoft Exchange Server 2019 Cumulative Update 15all versionscert_bundDEcpe:/a:microsoft:exchange:server_2019_cumulative_update_15
- Microsoft Windows App Client for Desktopall versionscert_bundDEcpe:/o:microsoft:windows:app_client_for_desktop
advisories (3)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0284Kwetsbaarheden verholpen in Microsoft WindowsNL2026-08-11csaf · ncsc_nlNL
Microsoft heeft een groot aantal kwetsbaarheden verholpen in Windows.
- WID-SEC-W-2026-2756Microsoft Windows Produkte: Mehrere SchwachstellenDeutsch2026-08-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows Server 2016, Microsoft Windows 10, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Exchange, Microsoft Windows 11, Microsoft Windows Server 2025 und Microsoft Windows ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.
- JVNDB-2026-035789JVN iPedia advisory JVNDB-2026-0357892026-09-28vendor · jvndbJP
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://trustedcomputinggroup.org/about/security/cnnvd
- https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdfcnnvd
- https://trustedcomputinggroup.org/wp-content/uploads/VRT0011-Advisory_Final-1.pdfcnnvd
- https://trustedcomputinggroup.org/about/security/enisa_euvd
- https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdfenisa_euvd
- https://trustedcomputinggroup.org/wp-content/uploads/VRT0011-Advisory_Final-1.pdfenisa_euvd
- https://trustedcomputinggroup.org/about/security/nvd
- https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdfnvd
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