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CVE-2020-1693

25
FAUCET Score

CVE-2020-1693 is a critical XML internal entity (XXE) vulnerability affecting Red Hat Spacewalk versions up to 2.9, specifically via the /rpc/api endpoint. This flaw allows unauthenticated remote attackers to achieve high impact on confidentiality, integrity, and availability, potentially leading to file disclosure, denial of service, or arbitrary code execution. Despite its critical CVSS score of 9.8, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.9CPE matchmatch criteria
cpe:2.3:a:redhat:spacewalk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.27%
Probability of exploitation in next 30 days
EPSS Percentile
90.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0427 is in the 83rd percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

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
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-1693Important

spacewalk: XML entity attacks on /rpc/api

Feb 11, 2020

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
github.com / spacewalkproject/spacewalk/commit/74e28ec61d916c42061ef4347121650a1c962b0c
Patch
zeroauth.ltd / blog/2020/02/18/proof-of-concept-exploit-for-cve-2020-1693-spacewalk
ExploitThird Party Advisory