CVE-2026-63938

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Check PSC request indices against the actual size of the buffer When processing Page State Change PSC requests, validate the PSC buffer against the effective size of the scratch area, which could be less than the maximu...

CVE-2026-63939

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Compute the correct max length of the in-GHCB scratch area When setting the length of the GHCB scratch area, and the area is in the GHCB shared buffer, set the effective length of the scratch area to the max possible si...

CVE-2026-64018

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In Confidential VMs SEV-SNP/TDX, this memory is shared unencrypted and HW c...

CVE-2026-64018 net: mana: validate rx_req_idx to prevent out-of-bounds array access

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In Confidential VMs SEV-SNP/TDX, this memory is shared unencrypted and HW c...

EUVD-2026-45713

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' or count '0', so that setting up the software scratch area and other code doesn't have to worry about underflowing the length, and...

CVE-2026-63939 KVM: SEV: Compute the correct max length of the in-GHCB scratch area

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Compute the correct max length of the in-GHCB scratch area When setting the length of the GHCB scratch area, and the area is in the GHCB shared buffer, set the effective length of the scratch area to the max possible si...

CVE-2026-63939

CVE-2026-63939 (Linux kernel, KVM SEV): The issue concerns computation of the maximum length for the in-GHCB scratch area in the GHCB shared buffer. Previously, KVM assumed the input length (@len) always represented the maximum required size for MMIO emulation; for PSC requests, @len is only the ...

CVE-2026-63938

The vulnerability CVE-2026-63938 affects the Linux kernel KVM SEV path, specifically PSC processing. The issue arises when validating PSC requests: the PSC buffer must be checked against the effective size of the scratch area, which may be smaller than the maximum if a guest supplies a pointer no...

EUVD-2026-45712

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Compute the correct max length of the in-GHCB scratch area When setting the length of the GHCB scratch area, and the area is in the GHCB shared buffer, set the effective length of the scratch area to the max possible si...

CVE-2026-63937

In the Linux kernel, CVE-2026-63937 pertains to KVM SEV where entries/indices in the guest-accessible PSC Page State Change buffer are now read with READ_ONCE() to defend against TOCTOU bugs. This change targets misbehavior by guests and reduces potential timing-related issues when the buffer is ...

CVE-2026-63937 KVM: SEV: Use READ_ONCE() when reading entries/indices from PSC buffer

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Use READONCE when reading entries/indices from PSC buffer Use READONCE when reading entries/indices from the guest-accessible Page State Change buffer to defend against TOCTOU bugs. Don't bother with READONCE/WRITEONCE...

EUVD-2026-45710

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Use READONCE when reading entries/indices from PSC buffer Use READONCE when reading entries/indices from the guest-accessible Page State Change buffer to defend against TOCTOU bugs. Don't bother with READONCE/WRITEONCE...

SonicWall SMA Zero-Days Exploited Before Disclosure to Gain Root Access

A previously undocumented threat actor has been attributed to the exploitation of recently disclosed SonicWall Secure Mobile Access SMA 1000 series VPN appliances as zero-days prior their public disclosure since June 22, 2026. Cybersecurity company Volexity is tracking the activity under the...

OESA-2026-3043 erlang security update

Erlang is a general-purpose programming language and runtime environment. Erlang has built-in support for concurrency, distribution and fault tolerance. Erlang is used in several large telecommunication systems from Ericsson. Security Fixes: Exposure of Sensitive Information to an Unauthorized...

OESA-2026-2984 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though th...

MGASA-2026-0266 Updated perl-Bytes-Random-Secure package fixes a security vulnerability

The updated package fixes a security vulnerability: Bytes::Random::Secure versions through 0.29 for Perl share internal state across forked processes. CVE-2026-11625...

Updated perl-Bytes-Random-Secure package fixes a security vulnerability

The updated package fixes a security vulnerability: Bytes::Random::Secure versions through 0.29 for Perl share internal state across forked processes. CVE-2026-11625...

PT-2026-61256

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM SEV implementation regarding the calculation of the maximum length of the in-GHCB scratch area. When the scratch area is located within the GHCB shared buffer,...

PT-2026-61255

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM SEV component when processing Page State Change PSC requests. The system fails to properly validate the PSC buffer against the effective size of the scratch...

CVE-2026-53994

ProFTPD modsftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxppacketread function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere in the read path to...