Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-20176

20
FAUCET Score

CVE-2021-20176 describes a divide-by-zero flaw in ImageMagick versions 6.9.11-57 and 7.0.10-57, specifically within the gem.c component, affecting Debian and ImageMagick installations. This vulnerability allows an attacker to trigger undefined behavior and impact system availability by submitting a specially crafted file for ImageMagick to process. Rated as Medium severity (CVSS 5.5), it requires user interaction (UI:R) and local access (AV:L), with the primary impact being a denial of service (A:H). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.9.11-57CPE matchmatch criteria
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
>= 7.0.0-0, < 7.0.10-56CPE matchmatch criteria
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 67th percentile among its peer group of 5,765 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2021-20176Moderate

ImageMagick: processing crafted file leads to division by zero

Jan 6, 2021

References

bugzilla.redhat.com / show_bug.cgi
Issue Tracking
lists.debian.org / debian-lts-announce/2021/03/msg00030.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2023/05/msg00020.html