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CVE-2020-36561

28
FAUCET Score

CVE-2020-36561 is a critical vulnerability affecting the unzip_project unzip utility, where improper path sanitization allows attackers to write or overwrite arbitrary files outside of the intended directory when processing specially crafted archives. With a CVSS score of 9.1, this vulnerability presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete integrity and availability compromise. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, its critical severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.3-0.20200308084313-2adbaa4891b9CPE matchmatch criteria
cpe:2.3:a:unzip_project:unzip:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
68.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 55th percentile among its peer group of 36,821 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/yi-ge/unzipFixed in: 1.0.3-0.20200308084313-2adbaa4891b9

Vendor Advisories (1)

goGHSA-f5c5-hmw9-v8hxcritical

Unzip vulnerable to path traversal

Dec 28, 2022

References

github.com / yi-ge/unzip/commit/2adbaa4891b9690853ef10216189189f5ad7dc73
PatchThird Party Advisory
github.com / yi-ge/unzip/pull/1
ExploitThird Party Advisory
pkg.go.dev / vuln/GO-2020-0035
Third Party Advisory
snyk.io / research/zip-slip-vulnerability
Technical DescriptionThird Party Advisory