CVE-2026-49794
published 2026-07-14CVE-2026-49794: Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.
PriorityP420medium4.6CVSS 3.1
AVPACLPRNUINSUCHINAN
Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.9339 | 10.0.14393.9339 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.9020 | 10.0.17763.9020 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.7548 | 10.0.19044.7548 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.7548 | 10.0.19045.7548 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.8875 | 10.0.26100.8875 |
| microsoft | windows_11_version_25h2 | >= 10.0.26200.0 < 10.0.26200.8875 | 10.0.26200.8875 |
| microsoft | windows_11_version_26h1 | >= 10.0.28000.0 < 10.0.28000.2269 | 10.0.28000.2269 |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.26226 | 6.2.9200.26226 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.23291 | 6.3.9600.23291 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.9339 | 10.0.14393.9339 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.9020 | 10.0.17763.9020 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.5386 | 10.0.20348.5386 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.33158 | 10.0.26100.33158 |
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No advisories linked to this vulnerability.
No detection rules found.
No public exploits indexed.
Rapid7
Patch Tuesday - July 2026
blogs_rapid7·2026-07-14·CVSS 9.6
CVE-2026-58617 [CRITICAL] Patch Tuesday - July 2026
Microsoft is publishing 622 vulnerabilities on July 2026 Patch Tuesday , including a record-breaking 416 Windows vulnerabilities. Microsoft is aware of exploitation in the wild for two of the vulnerabilities published today, both of which are listed on CISA KEV, as well as public disclosure for one other. As usual, browser vulns are not included in the Patch Tuesday count above. Rapid7 noted last month that Microsoft no longer enumerates Chromium CVEs in the Security Update Guide. However, Microsoft has now taken the pursuit of minimalism much further, since today’s Security Update Guide no longer lists out even Microsoft vulnerabilities! Instead, we now receive a summary table of vulnerability counts by product family, as well as a new slimline “Notable CVEs” section. All of this only ser
Sans Isc
Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here , (Tue, Jul 14th)
blogs_sans_isc·2026-07-14·CVSS 6.1
CVE-2026-56155 [MEDIUM] Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here , (Tue, Jul 14th)
Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here
Published: 2026-07-14. Last Updated: 2026-07-14 19:14:58 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
This patch Tuesday includes a staggering 622 vulnerabilities, not including another 427 vulnerabilities in Chromium, affecting Microsoft's Edge browser. 62 of the vulnerabilities are rated critical. One was disclosed before today, and two have already been exploited.
Given the large number of vulnerabilities, it is difficult to point out "noteworthy" issues.
Already exploited vulnerabilities:
CVE-2026-56155 : Active Directory Federation Services Elevation of Privilege Vulnerability. This is an important (not critical) vulnerablity.
CVE-2026-56164: Microsoft SharePoint Server Elevation of Privilege Vulnerability. Micr
Bugzilla
CVE-2025-49794 pcem: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
bugzilla·2025-09-02·CVSS 9.1
CVE-2025-49794 [CRITICAL] CVE-2025-49794 pcem: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
CVE-2025-49794 pcem: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all
Bugzilla
CVE-2025-49794 qt5-qtwebengine: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
bugzilla·2025-09-02·CVSS 9.1
CVE-2025-49794 [CRITICAL] CVE-2025-49794 qt5-qtwebengine: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
CVE-2025-49794 qt5-qtwebengine: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to
Bugzilla
CVE-2025-49794 mingw-libxml2: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
bugzilla·2025-06-12·CVSS 9.1
CVE-2025-49794 [CRITICAL] CVE-2025-49794 mingw-libxml2: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
CVE-2025-49794 mingw-libxml2: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
More information about this security flaw is available in the following bug:
https://bugzilla.redhat.com/show_bug.cgi?id=2372373
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'versio
Bugzilla
CVE-2025-49794 libxml2: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
bugzilla·2025-06-12·CVSS 9.1
CVE-2025-49794 [CRITICAL] CVE-2025-49794 libxml2: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
CVE-2025-49794 libxml2: Heap use after free (UAF) leads to Denial of service (DoS) [fedora-42]
More information about this security flaw is available in the following bug:
https://bugzilla.redhat.com/show_bug.cgi?id=2372373
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of
2026-07-14
Published