PT-2026-104106

Allocation of resources without limits or throttling in the CMP/CRMF password-based MAC verifier PKMacBuilder in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote unauthenticated attacker to cause a denial of service through CPU exhaustion via a CMP message or CRMF certifica...

AlmaLinux 9.2 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1789781561)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1789781561 advisory. - Issue summary: The OpenSSL Certificate Management Protocol CMP caches additional certificates extraCerts sent in a CMP message, bu...

openssl: openssl: Denial of Service via crafted CMP certificate revocation response

A flaw was found in OpenSSL. When a Certificate Management Protocol CMP client requests certificate revocation using a PKCS10 Certificate Signing Request CSR, it omits the certificate issuer name and serial number. A malicious or compromised CMP server, or an attacker possessing valid message...

openssl: openssl: Denial of Service via crafted CMP certificate revocation response

A flaw was found in OpenSSL. When a Certificate Management Protocol CMP client requests certificate revocation using a PKCS10 Certificate Signing Request CSR, it omits the certificate issuer name and serial number. A malicious or compromised CMP server, or an attacker possessing valid message...

AlmaLinux 9.6 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1789738618)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1789738618 advisory. - Issue summary: In a server or client configuration with RFC7250 Raw Public Keys RPKs enabled, and only the private key with no...

AlmaLinux 9.2 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl (ALMALINUX9.2:CLSA-2026:1782983109)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1782983109 advisory. - Issue summary: An attacker-controlled CMP Certificate Management Protocol server could trigger a NULL pointer dereference in a CMP client...

CVE-2026-75805

A flaw was found in OpenSSL. When a Certificate Management Protocol CMP client requests certificate revocation using a PKCS10 Certificate Signing Request CSR, it omits the certificate issuer name and serial number. A malicious or compromised CMP server, or an attacker possessing valid message...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference in the CMP client's handling of a revocation response, which compares the certificate named in the response against an issuer name and serial number that are unset when the revocation was requested by PKCS10 CSR...

DEBIAN-CVE-2026-75805

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

CVE-2026-75805

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105600 CVE-2026-75805 affecting package openvmm 0.1.0-1

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

ALPINE-CVE-2026-75805

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105369 CVE-2026-75805 affecting package openssl-fips-provider 3.1.2-2

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105438 CVE-2026-75805 affecting package cloud-hypervisor 52.0.152-1

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105477 CVE-2026-75805 affecting package edk2 20240524git3e722403cd16-20

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105528 CVE-2026-75805 affecting package kata-containers 4.1.0.kata0-1

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105591 CVE-2026-75805 affecting package openssl 3.3.7-6

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105717 CVE-2026-75805 affecting package qemu 10.1.0-1

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105852 CVE-2026-75805 affecting package rust 1.75.0-31

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...

AZL-105891 CVE-2026-75805 affecting package rust 1.96.1-2

Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response. Impact summary: The NULL pointer dereference happens on a read which leads to a crash and a Denial o...