How severe is CVE-2026-27848?

CVE-2026-27848 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-27848 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-27848?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-27848 have an EU (EUVD) identifier?

Yes. CVE-2026-27848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8650.

When was CVE-2026-27848 published?

CVE-2026-27848 was published on 2026-02-25 and last updated on 2026-06-17.

CVE-2026-27848

CVE-2026-27848 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8650
Weakness: CWE-78
Published: 2026-02-25
Last modified: 2026-06-17

Description

Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

Frequently asked questions

What is CVE-2026-27848?: Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
How severe is CVE-2026-27848?: CVE-2026-27848 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-27848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-27848?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-27848 have an EU (EUVD) identifier?: Yes. CVE-2026-27848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8650.
When was CVE-2026-27848 published?: CVE-2026-27848 was published on 2026-02-25 and last updated on 2026-06-17.

References

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-010.txt

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