SARA / Free Tools / CVE / CVE-2023-28981

CVE-2023-28981 — An Improper Input Validation vulnerability in the kernel of Juniper Networks Jun

An Improper Input Validation vulnerability in the kernel of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). If the receipt of router advertisements is enabled on an interface and a specifically malfor

CVSS
6.5 MEDIUM
EPSS
0.07% (top 78.70%)
CWE
CWE-20
Published
2023-04-17T00:00:00.000Z
Last modified
2025-02-05T21:40:20.322Z
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

An Improper Input Validation vulnerability in the kernel of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). If the receipt of router advertisements is enabled on an interface and a specifically malformed RA packet is received, memory corruption will happen which leads to an rpd crash. This issue affects: Juniper…

02Affected products

VendorProductVersions
Juniper NetworksJunos OS20.3, 20.4, 21.1, 21.2, 21.3, 21.4, 22.1
Juniper NetworksJunos OS Evolved20.3R1-EVO, 20.4-EVO, 21.3-EVO, 21.4-EVO, 22.1-EVO

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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