CVE-2026-18278

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 6.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

NVD analysis status

Deferred. NVD last modified this record on 2026-08-31.

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

2026-08-20 16:18Z15 DAYS AGO

Last updated

2026-08-21 20:08Z14 DAYS AGO

Reserved

2026-07-29

Assigning CNA

zdi

Record state

PUBLISHED

Severity

Low (CVSS 3.5)

CNA CVSS vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

57aabd15fa9cf7a86cff2cfd25613045646512a0a51b1ecab8583dd6ec98a20a

• www.zerodayinitiative.comZDI-26-471https://www.zerodayinitiative.com/advisories/ZDI-26-471/x_research-advisory
• www.sony.comvendor-provided URLhttps://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-9500es/software/00274922vendor-advisory