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-2020-24916

38
FAUCET Score

CVE-2020-24916 is a critical OS command injection vulnerability affecting the CGI implementation in Yaws web server versions 1.81 through 2.0.7, including various Canonical and Debian Linux distributions utilizing Yaws. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network without authentication, allowing an attacker to gain full control over the affected system, including confidentiality, integrity, and availability. Despite its high severity and ease of exploitation, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), it is not listed in CISA's KEV catalog, and there is minimal community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.81, <= 2.0.7CPE matchmatch criteria
cpe:2.3:a:yaws:yaws:*:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
17.37%
Probability of exploitation in next 30 days
EPSS Percentile
96.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1737 is in the 93rd percentile among its peer group of 36,833 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / erlyaws/yaws/commits/master
PatchThird Party Advisory
github.com / vulnbe/poc-yaws-cgi-shell-injection
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2020/09/msg00022.html
Mailing ListThird Party Advisory
packetstormsecurity.com / files/159106/Yaws-2.0.7-XML-Injection-Command-Injection.html
ExploitThird Party AdvisoryVDB Entry
usn.ubuntu.com / 4569-1
Third Party Advisory
vuln.be / post/yaws-xxe-and-shell-injections
ExploitThird Party Advisory
debian.org / security/2020/dsa-4773
Third Party Advisory