ALPINE-CVE-2026-42766

Issue summary: A specially crafted password-encrypted CMS message can trigger a NULL pointer dereference during CMS decryption. Impact summary: This NULL pointer dereference leads to an application crash and a Denial of Service. The CMS PasswordRecipientInfo.keyDerivationAlgorithm field is define...

USN-8414-1: OpenSSL vulnerabilities

Frank Buss discovered that OpenSSL had a heap buffer over-read in ASN.1 content parsing. An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or obtain sensitive information. CVE-2026-34180 Pavol Zacik and Alex Gaynor discovered that OpenSSL...

USN-8414-1 openssl vulnerabilities

Frank Buss discovered that OpenSSL had a heap buffer over-read in ASN.1 content parsing. An attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service, or obtain sensitive information. CVE-2026-34180 Pavol Zacik and Alex Gaynor discovered that OpenSSL...

EUVD-2026-35592

Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network...

CVE-2026-42903

Windows Kerberos in Windows is affected by CVE-2026-42903, a null pointer dereference that can be exploited by an authorized attacker over the network to cause a denial of service. The CVSS data indicates network access with low attack complexity, low privileges required, no user interaction, and...

CVE-2026-42767 NULL Pointer Dereference in CRMF EncryptedValue Decryption

Issue summary: An attacker-controlled CMP Certificate Management Protocol server could trigger a NULL pointer dereference in a CMP client application. Impact summary: A NULL pointer dereference causes a crash of the application and a Denial of Service. An attacker controlling a CMP server or acti...

CVE-2026-42767 NULL Pointer Dereference in CRMF EncryptedValue Decryption

Issue summary: An attacker-controlled CMP Certificate Management Protocol server could trigger a NULL pointer dereference in a CMP client application. Impact summary: A NULL pointer dereference causes a crash of the application and a Denial of Service. An attacker controlling a CMP server or acti...

CVE-2026-42767

The CVE-2026-42767 issue affects the OpenSSL CMP client: processing a CRMF CertRepMessage with EncryptedValue where symmAlg has an OID but no parameters can trigger a NULL pointer dereference, crashing the CMP client and enabling DoS. The vulnerability is due to improper handling during CMP respo...

CVE-2026-42767

Issue summary: An attacker-controlled CMP Certificate Management Protocol server could trigger a NULL pointer dereference in a CMP client application. Impact summary: A NULL pointer dereference causes a crash of the application and a Denial of Service. An attacker controlling a CMP server or acti...

CVE-2026-42766

The CVE-2026-42766 entry documents a NULL pointer dereference in OpenSSL’s CMS decryption for password-based CMS messages. Specifically, PasswordRecipientInfo.keyDerivationAlgorithm is OPTIONAL and may be absent; OpenSSL’s CMS decryption dereferences this field without checking, triggering an app...

CVE-2026-42765 NULL Dereference in Certificate Verification with OCSP Checking

Issue summary: When a partial-chain certificate verification is enabled together with OCSP response checking for the whole chain, a NULL dereference will happen if the verified chain does not have a self-signed trusted anchor, crashing the process. Impact summary: A NULL pointer dereference can...

CVE-2026-42765

CVE-2026-42765 describes a NULL dereference in certificate verification when OCSP response checking is enabled together with partial-chain verification. The issue triggers a crash (Denial of Service) if the verified chain lacks a self-signed trusted anchor, because for the last certificate the is...

CVE-2026-42764 NULL Pointer Dereference in QUIC Server Initial Packet Handling

Issue summary: Receiving a QUIC initial packet with an invalid token may trigger a NULL pointer dereference in the OpenSSL QUIC server with address validation disabled. Impact summary: NULL pointer dereference typically causes abnormal termination of the affected QUIC server process and a Denial ...

CVE-2026-42764 NULL Pointer Dereference in QUIC Server Initial Packet Handling

Issue summary: Receiving a QUIC initial packet with an invalid token may trigger a NULL pointer dereference in the OpenSSL QUIC server with address validation disabled. Impact summary: NULL pointer dereference typically causes abnormal termination of the affected QUIC server process and a Denial ...

CVE-2026-42764

Issue summary: Receiving a QUIC initial packet with an invalid token may trigger a NULL pointer dereference in the OpenSSL QUIC server with address validation disabled. Impact summary: NULL pointer dereference typically causes abnormal termination of the affected QUIC server process and a Denial ...

Windows Kerberos Denial of Service Vulnerability

Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network...

CVE-2026-11788 389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure...

CVE-2026-11788 389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure...

CVE-2026-11788

The vulnerability CVE-2026-11788 affects 389 Directory Server (389-ds-base) in the dereference control plugin BER parser. The root cause is that the plugin does not check for BER allocation failures before using structures, enabling a null pointer/dereference scenario that can crash the LDAP serv...

SUSE CVE-2026-46305

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: osdep: avoid NULL pointer dereference in rtwcbufalloc The return value of kzallocflex is used without ensuring that the allocation succeeded, and the pointer is dereferenced unconditionally. Guard the access t...