CVE-2026-19387

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-08-19.

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

2026-08-10 02:36Z25 DAYS AGO

Last updated

2026-08-19 01:55Z16 DAYS AGO

Reserved

2026-08-10

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.6)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

288542eae088d0e84d33e84fccdce3f762d3a04a0c8f0b60b453779765cdc759

• access.redhat.comRHSA-2026:55433https://access.redhat.com/errata/RHSA-2026:55433vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:55865https://access.redhat.com/errata/RHSA-2026:55865vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:56521https://access.redhat.com/errata/RHSA-2026:56521vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-19387vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2513015https://bugzilla.redhat.com/show_bug.cgi?id=2513015issue-trackingx_refsource_REDHAT
• gitlab.freedesktop.orghttps://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12235
• gstreamer.freedesktop.orghttps://gstreamer.freedesktop.org/releases/1.28/