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CVE-2026-7383 Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion

🗓️ 09 Jun 2026 16:03:15Reported by GoogleType 
osv
 osv🔗 osv.dev👁 1 Views

CVE-2026-7383 causes signed overflow when sizing Unicode output, risking heap overflow and possible code execution.

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ibm		Security Bulletin: Due to the use of OpenSSL, IBM EntireX is vulnerable to multiple vulnerabilities
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nessus		Amazon Linux 2023 : openssl, openssl-devel, openssl-fips-provider-latest (ALAS2023-2026-1853)
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nessus		Amazon Linux 2 : edk2, --advisory ALAS2-2026-3363 (ALAS-2026-3363)
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15 Jul 2026 01:49Current
7.6High risk
Vulners AI Score7.6
CVSS 3.18.1
EPSS0.00358
heap overflowASN1 multibyteUnicode sizingsigned overflowcode execution riskmbstring copyattacker controlled input
1