CVE-2026-4638

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

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 23.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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 2026-09-24.

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

2026-09-24 10:57Z1 MO AGO

Last updated

2026-09-24 12:14Z1 MO AGO

Reserved

2026-03-23

Assigning CNA

SEC-VLab

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-209Generation of Error Message Containing Sensitive InformationBase

Data version

5.2

Document digest

dafc9b26fbbee8aa1d853a949fe4d3a80221f8da701717a8684594b6dedac85e

• r.sec-consult.comhttps://r.sec-consult.com/paesslerthird-party-advisory
• paessler.freshdesk.comhttps://paessler.freshdesk.com/en/support/solutions/articles/76000088640vendor-advisory
• www.paessler.comhttps://www.paessler.com/de/download/patch
• www.paessler.comhttps://www.paessler.com/prtg/prtg-network-monitorproduct