CVE-2025-39715

In the Linux kernel, the following vulnerability has been resolved: parisc: Revise gateway LWS calls to probe user read access We use load and stbys,e instructions to trigger memory reference interruptions without writing to memory. Because of the way read access support is implemented, read access interruptions are only triggered at privilege levels 2 and 3. The kernel and gateway page execute at privilege level 0, so this code never triggers a read access interruption. Thus, it is currently possible for user code to execute a LWS compare and swap operation at an address that is read protected at privilege level 3 (PRIV_USER). Fix this by probing read access rights at privilege level 3 and branching to lws_fault if access isn't allowed.

• https://git.kernel.org/stable/c/8bccf47adbf658293528e86960e6d6f736b1c9f7Patch
• https://git.kernel.org/stable/c/9b6af875baba9c4679b55f4561e201485451305fPatch
• https://git.kernel.org/stable/c/bc0a24c24ceebabb5ba65900e332233d79e625e6Patch
• https://git.kernel.org/stable/c/e8b496c52aa0c6572d88db7cab85aeea6f9c194dPatch
• https://git.kernel.org/stable/c/f6334f4ae9a4e962ba74b026e1d965dfdf8cbef8Patch
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
• https://cert-portal.siemens.com/productcert/html/ssa-032379.html

Published

Sep 5, 2025

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2025-3971A vulnerability classified as critical was found in PHPGuruk…9.8
• CVE-2025-39710In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2025-39711In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-39712In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-39713In the Linux kernel, the following vulnerability has been re…4.7
• CVE-2025-39714In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-39716In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-39717In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-39718In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-39719In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2025-3972A vulnerability, which was classified as critical, has been …9.8
• CVE-2025-39720In the Linux kernel, the following vulnerability has been re…5.5