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01 Record

CVE-2026-57054

Junos OS: MX Series: Web filtering doesn't block specifically formatted URLs

MediumPUBLISHEDCNA: juniper
CNA base score6.9 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/AU:Y/RE:M

02 Description

Junos OS: MX Series: Web filtering doesn't block specifically formatted URLs

03 Exploitation and scoring

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
0.36% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 30.2% of scored records. A rank, not a probability.
NVD base score
6.9 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/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:Y/R:X/V:X/RE:M/U:X
NVD analysis status
Analyzed. 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.

04 Metadata

Published
2026-07-09 21:14Z3 MO AGO
Last updated
2026-07-10 14:34Z3 MO AGO
Reserved
2026-06-23
Assigning CNA
juniper
Record state
PUBLISHED
Severity
Medium (CVSS 6.9)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/AU:Y/RE:M
Weaknesses
  • CWE-706Use of Incorrectly-Resolved Name or ReferenceClass
Data version
5.2
Document digest
05306e6a74001273c704208b3a93c624412b155aa879e38839977d16446280aa

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS0 to < 23.2R2-S7, 23.4 to < 23.4R2-S8, 24.2 to < 24.2R2-S5, 24.4 to < 24.4R2-S4, 25.2 to < 25.2R2-S1, 25.4 to < 25.4R1-S2, 25.4R2MX Series

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: Junos OS: 23.2R2-S7, 23.4R2-S8, 24.2R2-S5, 24.4R2-S4, 25.2R2-S1, 25.4R1-S2, 25.4R2, 26.2R1, and all subsequent releases.