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CVE-2026-48092

גבוהה 8.1

תיאור (מקור, אנגלית)

7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass the fragment bounds check, causing memcpy to read heap memory preceding the cache buffer into the extracted file. The vulnerability is exploitable only on 32-bit builds of 7-Zip where size_t is 32 bits, allowing the addition offsetInBlock + blockSize to wrap modulo 2³². On 64-bit builds the addition is promoted to 64 bits and the check correctly rejects the input. Version 26.01 patches the issue.

מדדים

CVSS 3.1
8.1 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS — סבירות ניצול
0% (אחוזון 000) נכון ל-9/8/2026
CWE
CWE-125

מוצרים מושפעים

7-zip: 7-zip

קישורים