CVE-2022-0529

Exp

A flaw was found in Unzip. The vulnerability occurs during the conversion of a wide string to a local string that leads to a heap of out-of-bound write. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.

Published: 2022-02-09 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-0529 is rated High Exploit Risk (67.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.42%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.18% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-0529

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-0529

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.24% 2.42% +2.18%
2 2025-11-21 2.13% 0.24% -1.89%
3 2025-11-18 — 2.13% —

Full EPSS history (20 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-0529

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2022-0529

OS Trackers for CVE-2022-0529

vendor priority summary link
alpine medium CVE-2022-0529: 1 source package rows (unzip); 41 state rows across 9 repos (3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 18, open 23. https://security.alpinelinux.org/vuln/CVE-2022-0529
debian not yet assigned CVE-2022-0529 not yet assigned priority: Debian including 1 source packages (unzip), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2022-0529
gentoo high CVE-2022-0529: 1 GLSA(s) (202310-17), 1 atom(s) (app-arch/unzip); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-0529
redhat low — https://access.redhat.com/security/cve/CVE-2022-0529
suse medium CVE-2022-0529 severity moderate: SUSE including 240 source package names (0.23.1-12.3:unzip-6.00-150000.4.11.1, amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, …), 466 product×package rows across 232 product lines (Container bci/spack, Image SLES12-SP5-Azure-BYOS, … (232 product lines)): Fixed 235, Known Affected 231. https://www.suse.com/security/cve/CVE-2022-0529/
ubuntu medium CVE-2022-0529 medium priority: Ubuntu including 1 source packages (unzip), 7 status rows across 7 suites (bionic, focal, impish, jammy, trusty, upstream, xenial): released 6, ignored 1. https://ubuntu.com/security/CVE-2022-0529

Affected software / configurations for CVE-2022-0529

Vendor Product Version Raw CPE
unzip_project unzip 6.0 cpe:2.3:a:unzip_project:unzip:6.0:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2022-0529

cvelogic Threat Intelligence