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01 Record

CVE-2024-30403

Junos OS Evolved: When MAC learning happens, and an interface gets flapped, the PFE crashes

HighPUBLISHEDCNA: juniper
CNA base score7.1 CVSS v4.0CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

02 Description

Junos OS Evolved: When MAC learning happens, and an interface gets flapped, the PFE crashes

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.
  • 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
0.27% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 19.8% 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:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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
Analyzed. NVD last modified this record on 2026-06-17.
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
2024-04-12 15:28Z2 YR AGO
Last updated
2024-08-02 01:32Z2 YR AGO
Reserved
2024-03-26
Assigning CNA
juniper
Record state
PUBLISHED
Severity
High (CVSS 7.1)
CNA CVSS vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
Weaknesses
  • CWE-476NULL Pointer DereferenceBase
Data version
5.1
Document digest
65f4f40b24d0e45fea240dee8c858ebf2bb06231a584be2df93a818f56059182

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS Evolved23.2-EVO to < 23.2R1-S1-EVO, 23.2R2-EVO—
juniperjunos_os_evolved23.2-evo to < 23.2r1-s1-evo, 23.2-evo to < 23.2r2-evo—

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: 23.2R1-S1-EVO, 23.2R2-EVO, 23.4R1-EVO, and all subsequent releases.