How severe is CVE-2026-6805?

CVE-2026-6805 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-6805 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6805?

CVE-2026-6805 affects Thalesgroup Ercom Cryptobox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6805?

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

Does CVE-2026-6805 have an EU (EUVD) identifier?

Yes. CVE-2026-6805 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28342.

When was CVE-2026-6805 published?

CVE-2026-6805 was published on 2026-05-07 and last updated on 2026-06-17.

CVE-2026-6805

CVE-2026-6805 is a high-severity vulnerability in Thalesgroup Ercom Cryptobox with a CVSS 3.x base score of 7.5. 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-280.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28342
Weakness: CWE-280
Affected product: Thalesgroup Ercom Cryptobox
Published: 2026-05-07
Last modified: 2026-06-17

Description

Vulnerability on the external sharing feature in Cryptobox allows an attacker knowing a sharing link URL to retrieve information from the server allowing an offline brute-force attack of the access code associated to this sharing link.

Frequently asked questions

What is CVE-2026-6805?: Vulnerability on the external sharing feature in Cryptobox allows an attacker knowing a sharing link URL to retrieve information from the server allowing an offline brute-force attack of the access code associated to this sharing link.
How severe is CVE-2026-6805?: CVE-2026-6805 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-6805 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6805?: CVE-2026-6805 affects Thalesgroup Ercom Cryptobox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6805?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-6805 have an EU (EUVD) identifier?: Yes. CVE-2026-6805 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28342.
When was CVE-2026-6805 published?: CVE-2026-6805 was published on 2026-05-07 and last updated on 2026-06-17.

References

https://info.cryptobox.com/doc/v4.40/4.40.en/

Affected products (1)

cpe:2.3:a:thalesgroup:ercom_cryptobox:*:*:*:*:*:*:*:*

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