Dashboard / CVE-2021-4217

CVE-2021-4217

LOW
INFO Priority: 0.02 BB Relevance: 32/100
Published: 2022-08-24 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Low Complexity No Auth

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: None
A: Low

Description

A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

Weakness Classification (1)

Affected Software (7)

VendorProductVersion
fedoraproject fedora 35
n/a unzip unzip 6.0
redhat enterprise_linux 6.0
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
unzip_project unzip 6.0

References & Advisories (3)

Bug Bounty Relevance

32 / 100
✓ No authentication
✓ Low complexity

CVSS Score

3.3 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

EPSS — Exploitation Probability

0.62%
Raw Score 0.006180
Percentile 50.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00618
2026-11-12
0.00618
2026-11-10
0.00618
2026-11-09
0.00618
2026-11-08
0.00618
2026-11-07
0.00618
2026-11-06
0.00623
2026-11-05
0.00623
2026-11-04
0.00623
2026-11-03
0.00623
2026-11-02
0.00623

Intelligence Sources

mitre ref →
nvd ref →

External Links