CVE-2025-10990

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.47% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 38.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-26.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-02-27 13:32Z6 MO AGO

Last updated

2026-06-25 23:53Z2 MO AGO

Reserved

2025-09-25

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-1333Inefficient Regular Expression ComplexityBase

Data version

5.2

Document digest

01a993eae4fc2387a428ef2e52ee03f96e7a0d98e01f784d1dcf75b268dae1dc

• access.redhat.comRHSA-2025:17606https://access.redhat.com/errata/RHSA-2025:17606vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2025:17613https://access.redhat.com/errata/RHSA-2025:17613vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2025:17693https://access.redhat.com/errata/RHSA-2025:17693vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-10990vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2398216https://bugzilla.redhat.com/show_bug.cgi?id=2398216issue-trackingx_refsource_REDHAT
• github.comhttps://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f
• github.comhttps://github.com/ruby/rexml/security/advisories/GHSA-2rxp-v6pw-ch6m
• www.ruby-lang.orghttps://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761/