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CVE-2020-21535

21
FAUCET Score

CVE-2020-21535 describes a segmentation fault vulnerability in fig2dev version 3.2.7b, specifically within the gencgm_start function in gencgm.c. This flaw primarily impacts Debian Linux and the fig2dev component of the Xfig project. Rated as Medium severity (CVSS 5.5), successful exploitation requires local access and user interaction (e.g., opening a malicious file), leading to a denial of service. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.2.7CPE matchmatch criteria
cpe:2.3:a:xfig_project:fig2dev:3.2.7:b:*:*:*:*:*:*
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
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 65th percentile among its peer group of 5,758 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 Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: transfig

Vendor Advisories (1)

redhatCVE-2020-21535Moderate

transfig: segmentation fault in the gencgm_start() in gencgm.c

Dec 12, 2019

References

cwe.mitre.org / data/definitions/125.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2021/10/msg00002.html
Mailing ListThird Party Advisory
sourceforge.net / p/mcj/tickets/62
ExploitIssue TrackingThird Party Advisory