CVE-2026-7828

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

1.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 70.9% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L

NVD analysis status

Modified. 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

2026-07-01 03:33Z4 MO AGO

Last updated

2026-07-09 04:36Z3 MO AGO

Reserved

2026-05-05

Assigning CNA

securin

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

c455cd6ca9bf1003455a3f9d536f6fc4a5ddee08f8a1e01dfdb78ea97efd6faf

• uvnc.comUltraVNC project pagehttps://uvnc.com/vendor-advisory
• github.comUltraVNC source repositoryhttps://github.com/ultravnc/UltraVNCproduct
• www.securin.iohttps://www.securin.io/zero-days/cve-2026-7828-integer-overflow-win-log-malloc-ultravnc-repeater