CISA Flags Three Linux Kernel Vulnerabilities Exploited in the Wild

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Friday added three security flaws impacting the Linux kernel to its Known Exploited Vulnerabilities KEV catalog, citing evidence of active exploitation. The vulnerabilities are listed below - CVE-2025-39682 CVSS score: 9.8 - An...

VulnCheck KEV: CVE-2025-39682

Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rxlist to bypass the intended recvmsg record-type handling, potentially causing subsequent TLS records to be processed using...

Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability

Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rxlist to bypass the intended recvmsg record-type handling, potentially causing subsequent TLS records to be processed using...

AZL-97334 CVE-2026-74611 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: tls: rx: restore msgiter before TLS 1.3 optimistic retry tlsdecryptsg advances msg-msgiter when it maps user pages for the optimistic TLS 1.3 zero-copy path. If the decrypted record turns out not to be unpadded application data,...

SUSE CVE-2026-64025

In the Linux kernel, the following vulnerability has been resolved: bpf, skmsg: fix verdict skdataready racing with ktls rx skpsockstrpdataready already checks tlsswhasctxrx and defers to psock-saveddataready when a TLS RX context is present, avoiding a conflict with the TLS strparser's ownership...

Linux Distros Unpatched Vulnerability : CVE-2026-64025

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf, skmsg: fix verdict skdataready racing with ktls rx skpsockstrpdataready already checks tlsswhasctxrx and defers to psock-saveddataready when a TLS RX conte...

CVE-2026-64025

CVE-2026-64025 affects Linux kernel BPF plumbing where a TLS RX context could cause a use-after-free-like condition in data-path when a socket is inserted into a sockmap before TLS RX is configured. The issue arises because sk_psock_verdict_data_ready() does not guard against TLS RX ownership of ...

CVE-2026-64025 bpf, skmsg: fix verdict sk_data_ready racing with ktls rx

In the Linux kernel, the following vulnerability has been resolved: bpf, skmsg: fix verdict skdataready racing with ktls rx skpsockstrpdataready already checks tlsswhasctxrx and defers to psock-saveddataready when a TLS RX context is present, avoiding a conflict with the TLS strparser's ownership...

CVE-2026-64025 bpf, skmsg: fix verdict sk_data_ready racing with ktls rx

In the Linux kernel, the following vulnerability has been resolved: bpf, skmsg: fix verdict skdataready racing with ktls rx skpsockstrpdataready already checks tlsswhasctxrx and defers to psock-saveddataready when a TLS RX context is present, avoiding a conflict with the TLS strparser's ownership...

CVE-2026-45257 Arbitrary file overwrite via the KTLS receive path

The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through non-anonymous MEXTPG pages or...

PT-2026-29692

Name of the Vulnerable Software and Affected Versions Cesanta Mongoose versions up to 7.20 Description A flaw exists in the TLS 1.3 Handler component of Cesanta Mongoose, specifically within the mg tls recv cert function in the mongoose.c file. Manipulation of the pubkey argument can lead to a...

Security update for the Linux Kernel (Live Patch 22 for SUSE Linux Enterprise 15 SP5)

This update for the SUSE Linux Enterprise kernel 5.14.21-150500.55.91 fixes various security issues The following security issues were fixed: CVE-2022-50327: ACPI: processor: idle: Check acpifetchacpidev return value bsc1254451. CVE-2022-50409: net: If sock is dead don't access sock's skwq in...

SUSE SLES15 Security Update : kernel (Live Patch 21 for SUSE Linux Enterprise 15 SP5) (SUSE-SU-2026:0173-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0173-1 advisory. This update for the SUSE Linux Enterprise kernel 5.14.21-150500.55.88 fixes various security issues The following security issues were fixed: -...

SUSE SLES15 Security Update : kernel (Live Patch 40 for SUSE Linux Enterprise 15 SP4) (SUSE-SU-2026:0168-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0168-1 advisory. This update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.164 fixes various security issues The following security issues were fixed: ...

Security update for the Linux Kernel (Live Patch 42 for SUSE Linux Enterprise 15 SP4)

This update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.170 fixes various security issues The following security issues were fixed: CVE-2022-50233: bluetooth: device name can cause reading kernel memory by not supplying terminal \0 bsc1249242. CVE-2022-50327: ACPI: processor: idle: Che...

CVE-2024-58239

The CVE-2024-58239 issue affects the Linux kernel TLS path: if a non-DATA record is present in the rx_list and another of the same type remains in the queue, records can be merged and processing may exit mid-loop. The fix, described in the advisory, is to check the record type and jump to the end...