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CVE detail

CVE-2026-6727

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 5.9 · MediumBuzz score 41.5

Buzz score

Why this CVE is surfacing

Buzz score total 41.5

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 22.0 · diversity 19.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
22.0
8 evidence mentions in the snapshot
Diversity score
19.5
6 sources across 3 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
8
within the 30d window
Peak daily
8
highest bucket

Evidence

Source links by recency

Newest mentions first
8 source links · newest first
  • Patch Tuesday - August 2026Rapid7

    ktop browser security patches so far this month. SharePoint: critical RCE chain by Rapid7 Today sees the publication of CVE-2026-63520 , a high-severity remote code execution in Microsoft SharePoint. Discovered by Rapid7 Senior Principal Security Researcher Stephen Fewer , and published today in coordination with Microsoft; this vulnerability is the se

    vendorwww.rapid7.comAug 11, 2026, 9:10 PM
  • August 2026 Patch Tuesday: Microsoft Fixes 421 CVEs, One Exploited Zero-DaySecurityWeek

    cluding a high-severity vulnerability that has been exploited in the wild as a zero-day. The exploited flaw, tracked as CVE-2026-68820, is described as a use-after-free issue in Ancillary Function Driver for WinSock (afd.sys), the kernel-mode driver functioning as the backbone for the Windows Sockets API. Microsoft says threat actors have been exploiti

    newswww.securityweek.comAug 11, 2026, 6:46 PM
  • Microsoft's August 2026 Patch Tuesday Addresses 398 CVEs (CVE-2026-68820)Tenable

    of the vulnerabilities patched this month, followed by remote code execution (RCE) vulnerabilities at 27.1%. Important CVE-2026-68820 | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability CVE-2026-68820 is an EoP vulnerability affecting Windows Ancillary Function Driver for WinSock. It received a CVSSv3 score of 7.0 and

    vendorwww.tenable.comAug 11, 2026, 6:04 PM
  • The August 2026 Security Update ReviewZero Day Initiative

    g actively exploited, at least as 0-days. Again, we’ll start with the bug under active attack and move on from there. - CVE-2026-68820 - Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability This bug allows attackers to execute code at SYSTEM level. Bugs of this type are often paired with code execution bugs to take over a

    vendorwww.thezdi.comAug 11, 2026, 5:56 PM
  • https://trustedcomputinggroup.org/wp-content/uploads/VRT0011-Advisory_Final-1.pdftrustedcomputinggroup.org

    No excerpt available.

    referencetrustedcomputinggroup.orgAug 11, 2026, 4:17 PM
  • https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdftrustedcomputinggroup.org

    No excerpt available.

    referencetrustedcomputinggroup.orgAug 11, 2026, 4:17 PM
  • https://trustedcomputinggroup.org/about/security/trustedcomputinggroup.org

    No excerpt available.

    referencetrustedcomputinggroup.orgAug 11, 2026, 4:17 PM
  • CVE-2026-6727 MITRE: CVE-2026-6727 TPM 2.0 RSA OAEP Timing Side-Channel VulnerabilityMicrosoft MSRC

    [CVE-2026-6727](https://www.cve.org/CVERecord?id=CVE-2026-6727) is an Information Disclosure vulnerability in the TPM 2.0 reference implementation involving an RSA OAEP timing side channel. MITRE assigned this CVE on behalf of the Tru

    vendormsrc.microsoft.comAug 11, 2026, 2:00 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

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