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CVE-2024-39908

18
FAUCET Score

CVE-2024-39908 is a denial-of-service vulnerability affecting the REXML gem (versions prior to 3.3.1), an XML toolkit for Ruby, and related NetApp products. It allows an unauthenticated attacker to cause a denial of service by parsing specially crafted XML containing numerous specific characters. Rated as Medium severity (CVSS 4.3), this vulnerability has a low impact on availability and requires user interaction, though it can be exploited over the network. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.2CPE matchmatch criteria
cpe:2.3:a:ruby-lang:rexml:*:*:*:*:*:ruby:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.49%
Probability of exploitation in next 30 days
EPSS Percentile
71.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0149 is in the 84th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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

Patch Available

Vendor Patches (28)

microsoftpatch availablevia msrc
Product: cbl2 ruby 3.1.4-9 on CBL Mariner 2.0Fixed in: 3.1.7-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: 17596-17084Fixed in: 3.3.5-1
microsoftpatch availablevia msrc
Product: 17670-17084Fixed in: 3.3.5-1
microsoftpatch availablevia msrc
Product: 17669-17084Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: 17737-17084Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: 19724-17086Fixed in: 3.2.7-4
microsoftpatch availablevia msrc
Product: azl3 ruby 3.3.5-1 on Azure Linux 3.0Fixed in: 3.3.5-1
microsoftpatch availablevia msrc
Product: azl3 ruby 3.3.3-2 on Azure Linux 3.0Fixed in: 3.3.5-1
microsoftpatch availablevia msrc
Product: azl3 rubygem-rexml 3.3.4-1 on Azure Linux 3.0Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: azl3 rubygem-rexml 3.2.8-1 on Azure Linux 3.0Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: cbl2 rubygem-rexml 3.2.7-4 on CBL Mariner 2.0Fixed in: 3.2.7-4
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 3.3.5-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 3.3.5-1
microsoftpatch availablevia msrc
Product: 19723-17086Fixed in: 3.1.7-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ruby:3.3-8100020240906074654.489197e6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ruby:3.1-8100020250407112943.489197e6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ruby:3.3-9040020240906110954.9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ruby:3.1-9050020250404144903.9
View patch
rubygemspatch availablevia ghsa
Product: rexmlFixed in: 3.3.2
github_advisoryvendor investigatingvia nvd_reference
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ruby:3.0/ruby
redhatno patchvia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-toolbox-container
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-system-container
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-zync-container
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ruby:2.5/ruby
redhatend of lifevia redhat_api
Product: Red Hat 3scale API Management Platform 2Fixed in: 3scale-amp-backend-container

Vendor Advisories (5)

microsoft2024-Dec/CVE-2024-39908

CVE-2024-39908

Dec 10, 2024
microsoft2024-Oct/CVE-2024-39908

CVE-2024-39908

Oct 8, 2024
rubygemsGHSA-4xqq-m2hx-25v8medium

REXML denial of service vulnerability

Jul 16, 2024
redhatCVE-2024-39908Moderate

rexml: DoS vulnerability in REXML

Jul 16, 2024
microsoft2024-Jul/CVE-2024-39908Moderate

Denial of service in REXML

Jul 9, 2024

References

lists.debian.org / debian-lts-announce/2025/01/msg00011.html
security.netapp.com / advisory/ntap-20250117-0008
Third Party Advisory
github.com / ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
Vendor Advisory
ruby-lang.org / en/news/2024/07/16/dos-rexml-cve-2024-39908
Vendor Advisory