CVE-2026-15276

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.1% of scored records. A rank, not a probability.

NVD base score

1.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-25.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-07-09 22:00Z3 MO AGO

Last updated

2026-07-10 18:24Z3 MO AGO

Reserved

2026-07-09

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-404Improper Resource Shutdown or ReleaseClass

Data version

5.2

Document digest

6b1b3cc1b8f9faab71a6cc4fd1d83640d7c18b96653e749e4cd9cec1217bd641

• vuldb.comVDB-377216 | pdeljanov Symphonia Metadata denial of servicehttps://vuldb.com/vuln/377216vdb-entry
• vuldb.comVDB-377216 | CTI Indicators (IOB, IOC)https://vuldb.com/vuln/377216/ctisignaturepermissions-required
• vuldb.comCVE-2026-15276 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-15276third-party-advisory
• vuldb.comSubmit #852458 | Symphonia symphonia-metadata <= 0.6.0 Denial of Servicehttps://vuldb.com/submit/852458third-party-advisory
• github.comhttps://github.com/pdeljanov/Symphonia/issues/508exploitissue-tracking
• github.comhttps://github.com/pdeljanov/Symphonia/pull/514issue-trackingpatch
• github.comhttps://github.com/pdeljanov/Symphonia/product