CVE-2026-54478

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

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 7.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-24.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

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

2026-07-22 13:09Z1 MO AGO

Last updated

2026-07-22 14:14Z1 MO AGO

Reserved

2026-06-22

Assigning CNA

NLnet Labs

Record state

PUBLISHED

Severity

Low (CVSS 3.7)

CNA CVSS vector

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

Weaknesses

• CWE-290Authentication Bypass by SpoofingBase
• CWE-303Incorrect Implementation of Authentication AlgorithmBase

Data version

5.2

Document digest

dc9446819f0234f1469391fed2edc1694e4c52bb0ccc91e0ea1af57e49cc5d66

• www.nlnetlabs.nlhttps://www.nlnetlabs.nl/downloads/unbound/CVE-2026-54478.txtvendor-advisory