CVE-2026-75003

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 ImpacttotalSuccessful exploitation gives total 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

0.57% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 47.3% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-10.

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

2026-08-17 12:50Z2 MO AGO

Last updated

2026-08-18 03:55Z2 MO AGO

Reserved

2026-08-17

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

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

Weaknesses

• CWE-669Incorrect Resource Transfer Between SpheresClass

Data version

5.2

Document digest

dd6936d0bdbd8853dd1f375053412bd61335f028df8e035bf2b2208bcc5b8ab5

• roundcube.nethttps://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
• github.comhttps://github.com/roundcube/roundcubemail/releases/tag/1.6.18
• github.comhttps://github.com/roundcube/roundcubemail/commit/1cebea03474305d9f75a9a33d30880d290b5591b
• github.comhttps://github.com/roundcube/roundcubemail/releases/tag/1.7.3
• github.comhttps://github.com/roundcube/roundcubemail/commit/440277c32e6d84f3d116153af1cc8454361a8a56