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                "id": "CVE-2026-5187",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "modules": [
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              "value": "\u003cp\u003eBug 1 (off-by-one) affects any code calling DecodeObjectId() with an output buffer of size 1. Bug 2 (sizeof mismatch) is reachable via network when wolfSSL is compiled with HAVE_OID_DECODING or WOLFSSL_ASN_PRINT, and WC_ASN_UNKNOWN_EXT_CB is enabled with a registered unknown extension callback.\u003c/p\u003e"
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              "value": "\u003cp\u003eTwo potential heap out-of-bounds write locations existed in DecodeObjectId() in wolfcrypt/src/asn.c. First, a bounds check only validates one available slot before writing two OID arc values (out[0] and out[1]), enabling a 2-byte out-of-bounds write when outSz equals 1. Second, multiple callers pass sizeof(decOid) (64 bytes on 64-bit platforms) instead of the element count MAX_OID_SZ (32), causing the function to accept crafted OIDs with 33 or more arcs that write past the end of the allocated buffer.\u003cbr\u003e\u003c/p\u003e"
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              "description": "CWE-122: Heap-based Buffer Overflow",
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        "dateUpdated": "2026-04-09T19:45:39.937Z",
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          "name": "wolfSSL GitHub Repository",
          "url": "https://github.com/wolfSSL/wolfssl"
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        "discovery": "UNKNOWN"
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    "dateReserved": "2026-03-30T19:57:33.843Z",
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