Is CVE-2026-6805 in the CISA KEV catalog?

No. CVE-2026-6805 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-6805?

CVE-2026-6805 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2026-6805?

CVE-2026-6805 has an EPSS score of 0.23% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-6805?

Upgrade ercom cryptobox to 4.38.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-6805

HIGH

7.5

CVSS v3

NVD

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.

CWE-280Improper Handling of Insufficient Permissions

How to fix

Remediation Available

ercom cryptoboxNVD

Affected:>= 4.37.248, < 4.38.0Fixed in:4.38.0CVE-2026-6805derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.23%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Release Notes1

info.cryptobox.com

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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 2026-05-11.