CVE Explorer
CVE-2026-14266
7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vul
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"7-Zip","vendor":"7-Zip","versions":[{"status":"affected","version":"26.01"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:91169f4895e69b64e92a4528b2922ecc2c56e7f10afc7c5398f3c2775d5a9358 · sha256:7980d236c33d3272… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"metric_type":"cvssV3_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:91169f4895e69b64e92a4528b2922ecc2c56e7f10afc7c5398f3c2775d5a9358 · sha256:7980d236c33d3272… · /containers/cna/metrics/0/cvssV3_0
CWE assertions
1 source assertion{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:91169f4895e69b64e92a4528b2922ecc2c56e7f10afc7c5398f3c2775d5a9358 · sha256:7980d236c33d3272… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/07/17/12"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:91169f4895e69b64e92a4528b2922ecc2c56e7f10afc7c5398f3c2775d5a9358 · sha256:7980d236c33d3272… · /containers/adp/0/references/0
{"name":"ZDI-26-444","tags":["x_research-advisory"],"url":"https://www.zerodayinitiative.com/advisories/ZDI-26-444/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:91169f4895e69b64e92a4528b2922ecc2c56e7f10afc7c5398f3c2775d5a9358 · sha256:7980d236c33d3272… · /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.