CVE WatchOct 14, 2026

CVE-2022-1271

An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for e

CVSS

8.8

High

EPSS

5.5%

p93

KEV

—

Exploit Today

0-100

Published: Aug 31, 2022 · Last modified: Oct 14, 2026 · CWE-179 · CWE-20

EPSS · 30d

5.1%EPSS · 30 days5.5%

2026-10-022026-10-30

Technical description

An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.

Official references

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