CVE-2026-102080
MEDIUMDescription
An Improper Resource Locking vulnerability in the clock synchronization daemon (clksyncd) of Juniper Networks Junos OS on MX Series allows a unauthenticated, logically adjacent attacker to cause a Denial-of-Service (DoS). If a SyncE or PTP upstream node sends a malformed message to an MX device equipped with SCBE3, a false 19.44MHz alarm is generated on the master RE. This leads to persistent RE switchovers and a clksyncd process crash. This issue is outside the attacker's direct control as it's a race condition. This issue affects Junos OS on MX Series: * All versions before 23.2R2-S7.7; * 23.4 versions before 23.4R2-S8.13; * 24.2 versions before 24.2R2-S5.5; * 24.4 versions before 24.4R2-S4; * 25.2 versions before 25.2R2-S1; * 25.4 versions before 25.4R1-S2.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 8% of all known CVEs.
References
Related Vulnerabilities
Other CWE-413 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2026-32748 | High | 7.5 | 9.1% | - | Fix |
| CVE-2019-17102 | High | 8.3 | 1.9% | - | Fix |
| CVE-2022-24946 | High | 7.5 | 1.7% | - | - |
| CVE-2022-20678 | High | 8.6 | 1.0% | - | - |
| CVE-2023-28649 | High | 8.6 | 0.5% | - | Fix |
| CVE-2023-33951 | Medium | 6.7 | 0.3% | - | Fix |
Common questions
How do I fix CVE-2026-102080?
No published fix for CVE-2026-102080 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-102080 being actively exploited?
Not that we know of. CVE-2026-102080 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.18% is the estimated probability that it will be exploited in the next 30 days. That is higher than 8% of all scored CVEs.
How severe is CVE-2026-102080?
CVE-2026-102080 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2026-102080
Markdown
[](https://tridentstack.com/cve/CVE-2026-102080)HTML
<a href="https://tridentstack.com/cve/CVE-2026-102080"><img src="https://tridentstack.com/cve/badge/CVE-2026-102080.svg" alt="CVE-2026-102080"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-10-15.