openssl

OpenSSL Software Foundation

CVEs, 365 days63190 all time, 46 rejected
Quality66%median 99%
CVSS by the CNA0%share of records
CWE100%share of records
Affected versions100%not n/a or unspecified
CVSS added by CISA100%lower is better
OrganisationOpenSSL Software Foundation
RoleCNA
TypeVendor, Open Source
Reports tomitre
ScopeOpenSSL software projects only.
Advisorieshttps://www.openssl.org/news/vulnerabilities.html
  • CVE-2026-84784 2026-09-29
    Issue summary: A malicious remote peer may flood the local QUIC stack with NEW_CONNECTION_ID frames by avoiding a limit check on how many connection IDs the rem
  • CVE-2026-84783 2026-09-29
    Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is
  • CVE-2026-84782 2026-09-29
    Issue summary: The DTLS retransmission logic does not correctly handle a handshake message write that is suspended part-way through. The retransmitted message c
  • CVE-2026-77696 2026-09-29
    Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to
  • CVE-2026-75806 2026-09-29
    Issue summary: An established DTLS 1.2 association using an AEAD cipher suite can be terminated by a single unauthenticated datagram whose encrypted fragment is
  • CVE-2026-75805 2026-09-29
    Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when proc
  • CVE-2026-75804 2026-09-29
    Issue summary: OpenSSL QUIC stack does not enforce connection level flow control for streams. Remote peers may send more bytes as long as they fit within the st
  • CVE-2026-72897 2026-09-29
    Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a connection to a different SSL_CTX part way through a handshake may access memory beyond the
  • CVE-2026-54875 2026-09-29
    Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms.
  • CVE-2026-54873 2026-09-29
    Issue summary: QUIC process may keep memory for QUIC packet buffer for much longer period than necessary. Impact summary: Remote peer can exploit this vulnerab
  • CVE-2026-54872 2026-09-29
    Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementat
  • CVE-2026-42772 2026-09-29
    Issue summary: The QUIC stream reassembly algorithm performance deteriorates progressively as packets are arriving out of order. The worst case has a quadratic
  • CVE-2026-35191 2026-09-29
    Issue summary: The OpenSSL QUIC server, when configured to not preform address validation, can be forced to count incoming packets multiple times in its unvalid
  • CVE-2026-35189 2026-09-29
    Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions.
  • CVE-2026-75803 2026-08-25
    Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the o
  • CVE-2026-63076 2026-08-25
    Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before tr
  • CVE-2026-63075 2026-08-25
    Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC
  • CVE-2026-63074 2026-08-25
    Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for
  • CVE-2026-63073 2026-08-25
    Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`. Imp
  • CVE-2026-63072 2026-08-25
    Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can wri
  • CVE-2026-54874 2026-08-25
    Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requi
  • CVE-2026-18798 2026-08-25
    Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for initial packet. Impact summary: Double free leads
  • CVE-2026-14457 2026-08-25
    Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the private key (with no associated certificate) config
  • CVE-2026-14456 2026-08-13
    Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unknown destination connection IDs, it can allocate an
  • CVE-2026-54876 2026-08-05
    Issue summary: A malicious TLS server can cause a memory leak in a TLS client that has enabled OCSP response checking by sending an OCSP response that contains

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