CVE Feed

    Dashboard / CVE / CVE-2021-44718

    CVE-2021-44718

    wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.

    Published:Sep 2, 2022
    Last Modified:Nov 21, 2024
    EPS:Sep 2, 2022
    EPSS Score:0.0066
    CVSS Score:5.9

    Affected Products

    Vendor
    Wolfssl
    Product
    Wolfssl

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-7511 (CVSS 5.9) — PKCS7_verify signer confusion allows forged signatures, where the signer associated with a signature is not co…
    CVE-2026-7532 (CVSS 5.7) — iPAddress name constraints bypass when WOLFSSL_IP_ALT_NAME is not defined. IP address name constraints are not…
    CVE-2026-8720 (CVSS 5.9) — wc_Blake2bHmacFinal and wc_Blake2sHmacFinal discard the message when the key length exceeds the block size, pr…
    CVE-2026-10098 (CVSS 6.3) — OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status allows a same-issuer SingleRespons…
    CVE-2026-11703 (CVSS 6) — Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously skipped the binding check perfo…
    CVE-2026-55962 (CVSS 6) — TLS 1.3 post-handshake authentication (PHA) issue where a server could accept a client's Finished message with…
    CVE-2026-6092 (CVSS 2.1) — When HAVE_ENCRYPT_THEN_MAC is configured, the implementation could fall back to MAC-then-Encrypt rather than e…
    CVE-2026-6325 (CVSS 2) — Out-of-bounds write in SetSuitesHashSigAlgo when processing an oversized signature algorithms list, allowing a…
    CVE-2026-6329 (CVSS 6) — PKCS#12 MAC verification uses an attacker-controlled comparison length, weakening the integrity check on the M…
    CVE-2026-6330 (CVSS 6.3) — The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto tra…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High