Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N R U H N N 6.5 .0027 18.9 —
AFFECTED Product Versions Fixed 7-Zip >= 9.34, < 26.01 – —
TIMELINE May 20 Reserved by GitHub_M Jun 5 EXPLOIT PUBLISHED — CVE-2026-48112 (mcmilk 7-Zip). Public exploit reference added. Jun 5 Published (CNA: GitHub_M)
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain a heap out-of-bounds read in 7-Zip Ar handler BSD SYMDEF parser. A 4-byte heap out-of-bounds read exists in the Unix ar archive parser in 7-Zip. When parsing a BSD-style __.SYMDEF symbol table, the ParseLibSymbols function reads a 32-bit namesSize field via Get32 at a position that can equal the buffer size, reading 4 bytes past the end of the heap allocation. This reads uninitialized heap data under the default allocator. Version 26.01 patches the issue.
| Date | Event | Detail |
|---|---|---|
| May 20, 2026 | Reserved | Reserved by GitHub_M |
| June 5, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-48112 (mcmilk 7-Zip). Public exploit reference added. |
| June 5, 2026 | Published | Published (CNA: GitHub_M) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| mcmilk | 7-Zip | — | >= 9.34, < 26.01 | — |
Authoritative record: CVE-2026-48112 at cve.org
Vendors: mcmilk
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-48112 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.