CVE-2021-39293

Name: CVE-2021-39293
Creator: NVD / NIST
Published: 2022-01-24T01:15:07.92+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 6.93%

Last modified Jun 17, 2026

CVE-2021-39293 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In archive/zip in Go before 1.16.8 and 1.17.x before 1.17.1, a crafted archive header (falsely designating that many files are present) can cause a NewReader or OpenReader panic. NOTE: this issue exists because of an incomplete fix for CVE-2021-33196.. EPSS estimates a 6.93% chance of exploitation in the next 30 days.

Description

In archive/zip in Go before 1.16.8 and 1.17.x before 1.17.1, a crafted archive header (falsely designating that many files are present) can cause a NewReader or OpenReader panic. NOTE: this issue exists because of an incomplete fix for CVE-2021-33196.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

6.93%

93.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-770

Affected Software

Vendor	Product	Versions
Golang	Go	< 1.16.8
Golang	Go	>= 1.17.0, < 1.17.1
Netapp	Cloud Insights Telegraf	All versions

References

https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
https://groups.google.com/g/golang-announce/c/dx9d7IOseHwIssue Tracking, Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
https://security.netapp.com/advisory/ntap-20220217-0009/Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
https://groups.google.com/g/golang-announce/c/dx9d7IOseHwIssue Tracking, Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
https://security.netapp.com/advisory/ntap-20220217-0009/Third Party Advisory

Timeline

Published: Jan 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39293?

How severe is CVE-2021-39293?

CVE-2021-39293 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.93% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39293?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39293?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST