CVE & CISA-KEV Catalog

CVE-2022-1271

HIGHEPSS 90th pctl
8.8
CVSS v3
NVD

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.

How to fix

Remediation Available
gzipDebian
Fixed in:1.10-4+deb11u1CVE-2022-1271
Fixed in:1.12-1CVE-2022-1271
Fixed in:1.12-1CVE-2022-1271
Fixed in:1.12-1CVE-2022-1271
gzipUbuntu
Fixed in:1.6-3ubuntu1+esm1USN-5378-4
Fixed in:1.6-4ubuntu1+esm1USN-5378-4
Fixed in:1.6-5ubuntu1.2USN-5378-1
Fixed in:1.10-0ubuntu4.1USN-5378-1
xz-utilsUbuntu
Fixed in:5.1.1alpha+20120614-2ubuntu2.14.04.1+esm1USN-5378-3
Fixed in:5.1.1alpha+20120614-2ubuntu2.16.04.1+esm1USN-5378-3
Fixed in:5.2.2-1.3ubuntu0.1USN-5378-2
Fixed in:5.2.4-1ubuntu1.1USN-5378-2

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

4.29%probability of exploitation in 30 days
90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Related Vulnerabilities

Other CWE-179 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2026-25223High7.50.8%-Fix
CVE-2026-3832Low3.70.7%-Fix
CVE-2026-32305Medium5.30.4%-Fix
CVE-2025-4759High8.30.4%-Fix
CVE-2024-41686Low3.30.2%--
CVE-2026-49414High7.80.1%--

Common questions

How do I fix CVE-2022-1271?

Published advisories record a fix for 3 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-1271 being actively exploited?

Not that we know of. CVE-2022-1271 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.3% is the estimated probability that it will be exploited in the next 30 days. That is higher than 90% of all scored CVEs.

How severe is CVE-2022-1271?

CVE-2022-1271 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-1271 affect?

Published advisories record a fix for gzip (Debian), gzip (Ubuntu), xz-utils (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-09.