CVE-2024-21586
Junos OS: SRX Series and NFX Series: Specific valid traffic leads to a PFE crash
02 Description
Junos OS: SRX Series and NFX Series: Specific valid traffic leads to a PFE crash
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
- 0.49% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 42.4% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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
- 2024-07-01 16:34Z2 YR AGO
- Last updated
- 2024-08-01 22:27Z2 YR AGO
- Reserved
- 2023-12-27
- Assigning CNA
- juniper
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-754Improper Check for Unusual or Exceptional ConditionsClass
- Data version
- 5.1
- Document digest
- 57439ef1aaf5d174977b7cfe2bd61d5480c597d1d35b8ae12c4657855d0376ab
05 Affected products
06 References
- supportportal.juniper.nethttps://supportportal.juniper.net/JSA83195
07 Remediation
The following software releases have been updated to resolve this specific issue: SRX Series: 21.4R3-S7.9, 22.1R3-S5.3, 22.2R3-S4.11, 22.3R3, 22.4R3, 23.2R1, and all subsequent releases; NFX Series: 21.4R3-S8, 22.2R3-S5*, 22.3R3, 22.4R3, 23.2R1, and all subsequent releases. * Pending publication. Please note that the software versions 21.4R3-S7.9, 22.1R3-S5.3 and 22.2R3-S4.11 are respins of previously released versions, so special attention needs to be paid to the last digits of the version number.