Cisco IOS XR Software Security Hardening Release: September 2026

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20280 are related to improper checking or handling of exceptional condition issues that are grouped under the Common Weakness Enumeration (CWE) CWE-703.

Cisco IOS XR Software Security Hardening Release: September 2026

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20276 are related to insufficient control flow management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-691.

Windows Universal Plug and Play (UPnP) Device Host Information Disclosure Vulnerability

Exposure of private personal information to an unauthorized actor in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to disclose information locally.

Vim < v9.1.0648 has a double-free in dialog_changed()

Vim is an open source command line text editor. double-free in dialog_changed() in Vim < v9.1.0648. When abandoning a buffer, Vim may ask the user what to do with the modified buffer. If the user wants the changed buffer to be saved, Vim may create a new Untitled file, if the buffer did not have a name yet. However, when setting the buffer name to Unnamed, Vim will falsely free a pointer twice, leading to a double-free and possibly later to a heap-use-after-free, which can lead to a crash. The issue has been fixed as of Vim patch v9.1.0648.

Vim has heap-use-after-free at /src/charset.c:1770:12 in skipwhite

Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later then be accessed by the initial `:s` command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.

Use After Free in vim/vim

Use After Free in GitHub repository vim/vim prior to v9.0.2010.

Heap-based Buffer Overflow in vim/vim

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1873.

Use After Free in vim/vim

Use After Free in GitHub repository vim/vim prior to 9.0.1858.

Heap-based Buffer Overflow in vim/vim

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1331.

Use After Free in vim/vim

Use After Free in GitHub repository vim/vim prior to 9.0.1857.

chromium-browser: Chromium: Arbitrary code execution via use-after-free in DigitalCredentials

Use after free in DigitalCredentials in Google Chrome prior to 153.0.8010.47 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

chromium-browser: chromium-browser: Incorrect reference resolution in Extensions

Incorrect reference resolution in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a local attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)

Out of bounds read in Chromoting in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local attacker to read memory outside the sandbox via a local program. (Chromium security severity: High)

chromium-browser: Chromium: Arbitrary code execution via use-after-free in Input

Use after free in Input in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

chromium-browser: Google Chrome: Arbitrary Code Execution via Use-After-Free Vulnerability

Use after free in Input in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Uninitialized resource in GPU in Google Chrome on on Android prior to 153.0.8010.36 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

chromium-browser: chromium-browser: Uninitialized resource in ANGLE

Uninitialized resource in ANGLE in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

chromium-browser: chromium-browser: Type confusion in V8

Type confusion in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Out of bounds read in ANGLE in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Out of bounds read in Tint in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Low)