CVE Explorer
CVE-2026-48111
7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an off-by-one out-of-bounds read vulnerability in the ParseDepedencyExpression function of the UEFI firmware image parser(CPP/7zip/Archive/UefiHandler.cpp). The function validates an attacker-controlled opcode byte using > instead of >= against the element count of the 10-entry kExpressionCommands static array, allowing an opcode value of 10 to read one pointer slot (8 bytes on x64) past the end of the ar
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"7-Zip","vendor":"mcmilk","versions":[{"status":"affected","version":">= 9.18, < 26.01"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:23b1157f844b64551932da46489c975eea74b6e4bb956a72aefb11ca5ac43609 · sha256:635d0b2e8aeecda3… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:23b1157f844b64551932da46489c975eea74b6e4bb956a72aefb11ca5ac43609 · sha256:635d0b2e8aeecda3… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:23b1157f844b64551932da46489c975eea74b6e4bb956a72aefb11ca5ac43609 · sha256:635d0b2e8aeecda3… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["exploit"],"url":"https://securitylab.github.com/advisories/GHSL-2026-115_GHSL-2026-122_7-zip/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:23b1157f844b64551932da46489c975eea74b6e4bb956a72aefb11ca5ac43609 · sha256:635d0b2e8aeecda3… · /containers/adp/0/references/0
{"name":"https://securitylab.github.com/advisories/GHSL-2026-115_GHSL-2026-122_7-zip/","tags":["x_refsource_CONFIRM"],"url":"https://securitylab.github.com/advisories/GHSL-2026-115_GHSL-2026-122_7-zip/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:23b1157f844b64551932da46489c975eea74b6e4bb956a72aefb11ca5ac43609 · sha256:635d0b2e8aeecda3… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.