01 Record
CVE-2024-39551
Junos OS: SRX Series and MX Series with SPC3 and MS-MPC/MIC: Receipt of specific packets in H.323 ALG causes traffic drop
HighPUBLISHEDCNA: juniper
CNA base score8.7 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
02 Description
Junos OS: SRX Series and MX Series with SPC3 and MS-MPC/MIC: Receipt of specific packets in H.323 ALG causes traffic drop
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.
- EPSS probability
- 0.47% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 40.8% of scored records. A rank, not a probability.
- NVD base score
- 8.7 (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: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
- 2024-07-11 16:29Z2 YR AGO
- Last updated
- 2024-08-02 04:26Z2 YR AGO
- Reserved
- 2024-06-25
- Assigning CNA
- juniper
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.7)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
- Weaknesses
- CWE-400Uncontrolled Resource ConsumptionClass
- Data version
- 5.1
- Document digest
- 3256bdcce5837b7cff076ab483e0e3d907ba2c8615503c1303d2a3a2e54be2a2
05 Affected products
VendorProductVersionsPlatforms
Juniper NetworksJunos OS20.4 to < 20.4R3-S10, 21.2 to < 21.2R3-S6, 21.3 to < 21.3R3-S5, 21.4 to < 21.4R3-S6, 22.1 to < 22.1R3-S4, 22.2 to < 22.2R3-S2, 22.3 to < 22.3R3-S1, 22.4 to < 22.4R3, 23.2 to < 23.2R2SRX Series, MX Series
juniperjunos_os20.4 to < 20.4r3-s10, 21.2 to < 21.2r3-s6, 21.3 to < 21.3r3-s5, 21.4 to < 21.4r3-s6, 22.1 to < 22.1r3-s4, 22.2 to < 22.2r3-s2, 22.3 to < 22.3r3-s1, 22.4 to < 22.4r3, 23.2 to < 23.2r2—
06 References
- supportportal.juniper.nethttps://supportportal.juniper.net/JSA83013
07 Remediation
The following software releases have been updated to resolve this specific issue: Junos OS: 20.4R3-S10, 21.2R3-S6, 21.3R3-S5, 21.4R3-S6, 22.1R3-S4, 22.2R3-S2, 22.3R3-S1, 22.4R3, 23.2R2, 23.4R1, and all subsequent releases.