How severe is CVE-2024-34539?

CVE-2024-34539 has a CVSS 3.x base score of 9.4, 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 low.

Is CVE-2024-34539 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-34539?

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-2024-34539 have an EU (EUVD) identifier?

Yes. CVE-2024-34539 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-34845.

When was CVE-2024-34539 published?

CVE-2024-34539 was published on 2024-06-14 and last updated on 2026-06-17.

CVE-2024-34539

CVE-2024-34539 is a critical-severity vulnerability with a CVSS 3.x base score of 9.4. 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-259.

Key facts

Severity: Critical (CVSS 3.x base score 9.4)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-34845
Weakness: CWE-259
Published: 2024-06-14
Last modified: 2026-06-17

Description

Hardcoded credentials in TerraMaster TOS firmware through 5.1 allow a remote attacker to successfully login to the mail or webmail server. These credentials can also be used to login to the administration panel and to perform privileged actions.

Frequently asked questions

What is CVE-2024-34539?: Hardcoded credentials in TerraMaster TOS firmware through 5.1 allow a remote attacker to successfully login to the mail or webmail server. These credentials can also be used to login to the administration panel and to perform privileged actions.
How severe is CVE-2024-34539?: CVE-2024-34539 has a CVSS 3.x base score of 9.4, 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 low.
Is CVE-2024-34539 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-34539?: 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-2024-34539 have an EU (EUVD) identifier?: Yes. CVE-2024-34539 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-34845.
When was CVE-2024-34539 published?: CVE-2024-34539 was published on 2024-06-14 and last updated on 2026-06-17.

References

https://shinnai.altervista.org/exploits/SH-20240611-CVE-2024-34539.html

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