How severe is CVE-2025-58767?

CVE-2025-58767 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-58767 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-58767?

CVE-2025-58767 affects Ruby-lang Rexml. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-58767?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-58767 have an EU (EUVD) identifier?

Yes. CVE-2025-58767 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29746.

When was CVE-2025-58767 published?

CVE-2025-58767 was published on 2025-09-17 and last updated on 2026-06-17.

CVE-2025-58767

CVE-2025-58767 is a medium-severity vulnerability in Ruby-lang Rexml with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 1.2
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29746
Weakness: CWE-400
Affected product: Ruby-lang Rexml
Published: 2025-09-17
Last modified: 2026-06-17

Description

REXML is an XML toolkit for Ruby. The REXML gems from 3.3.3 to 3.4.1 has a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. The REXML gem 3.4.2 or later include the patches to fix these vulnerabilities.

Frequently asked questions

What is CVE-2025-58767?: REXML is an XML toolkit for Ruby. The REXML gems from 3.3.3 to 3.4.1 has a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. The REXML gem 3.4.2 or later include the patches to fix these vulnerabilities.
How severe is CVE-2025-58767?: CVE-2025-58767 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-58767 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-58767?: CVE-2025-58767 affects Ruby-lang Rexml. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-58767?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-58767 have an EU (EUVD) identifier?: Yes. CVE-2025-58767 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29746.
When was CVE-2025-58767 published?: CVE-2025-58767 was published on 2025-09-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ruby-lang:rexml:*:*:*:*:*:ruby:*:*

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