7-Zip: Vulnerability allows code execution
A BSI Warn- und Informationsdienst (WID): Schwachstellen-Informationen (Bürger Cert) ·
Admiralty grading (A–F · 1–6)
Source reliability
- A Completely reliable
- B Usually reliable
- C Fairly reliable
- D Not usually reliable
- E Unreliable
- F Cannot be judged
Information credibility
- 1 Confirmed
- 2 Probably true
- 3 Possibly true
- 4 Doubtful
- 5 Improbable
- 6 Cannot be judged
NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.
Key insight
The vulnerability requires user interaction and affects widely used compression software installed in many corporate environments; a CVE ID is not yet available.
Description
A vulnerability exists in 7-Zip caused by a heap-based buffer overflow when processing XZ chunked data. A remote, anonymous attacker can exploit this to execute arbitrary code. Successful exploitation requires user interaction, such as opening a manipulated archive file. No CVE ID is currently available, and there are no indications of active exploitation or inclusion in KEV catalogs.
Risk score
- cvss base
- 0.00
- kev bonus
- 0.00
- epss bonus
- 0.00
- poc bonus
- 0.00
- raw before weight
- 0.00
- industry weight
- 1.21
- freshness factor
- 0.50
- exploitability factor
- 1.00
- days old
- 57.00
- vendor mismatch penalty
- 0.00
Path: operational