CVE-2026-58016

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

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.6% of scored records. A rank, not a probability.

NVD base score

9.1 (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:H/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-25.

Red Hat severity

Important. 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

2026-06-30 13:02Z2 MO AGO

Last updated

2026-08-25 09:03Z10 DAYS AGO

Reserved

2026-06-26

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-191Integer Underflow (Wrap or Wraparound)Base

Data version

5.2

Document digest

b229cb8463884ea4e6f1beed7251f8e01ef76c88a7e1cbeb8294b07d9cbdf369

• access.redhat.comRHSA-2026:42063https://access.redhat.com/errata/RHSA-2026:42063vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:42089https://access.redhat.com/errata/RHSA-2026:42089vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:42090https://access.redhat.com/errata/RHSA-2026:42090vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:44481https://access.redhat.com/errata/RHSA-2026:44481vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46836https://access.redhat.com/errata/RHSA-2026:46836vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:49512https://access.redhat.com/errata/RHSA-2026:49512vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51175https://access.redhat.com/errata/RHSA-2026:51175vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51176https://access.redhat.com/errata/RHSA-2026:51176vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51177https://access.redhat.com/errata/RHSA-2026:51177vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51181https://access.redhat.com/errata/RHSA-2026:51181vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51182https://access.redhat.com/errata/RHSA-2026:51182vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51183https://access.redhat.com/errata/RHSA-2026:51183vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51184https://access.redhat.com/errata/RHSA-2026:51184vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:51185https://access.redhat.com/errata/RHSA-2026:51185vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:53371https://access.redhat.com/errata/RHSA-2026:53371vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:58981https://access.redhat.com/errata/RHSA-2026:58981vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-58016vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2492257https://bugzilla.redhat.com/show_bug.cgi?id=2492257issue-trackingx_refsource_REDHAT
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/glib/-/issues/3932