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CVE-2025-63811

Dvsekhvalnov Jose2go denial of service

7.5 HIGHPublic exploitEPSS 0.24%
  1. Published12 Nov 2025

Description

An issue was discovered in dvsekhvalnov jose2go 1.5.0 thru 1.7.0 allowing an attacker to cause a Denial-of-Service (DoS) via crafted JSON Web Encryption (JWE) token with an exceptionally high compression ratio.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Dvsekhvalnov Jose2go≥ 1.5.0 < 1.7.0

Remediation

Fixed in
Dvsekhvalnov Jose2go≥ 1.7.0

References

Frequently asked

Is CVE-2025-63811 being actively exploited?

CVE-2025-63811 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.24%.

How severe is CVE-2025-63811?

CVE-2025-63811 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.24% probability of exploitation.

Which products are affected by CVE-2025-63811?

Affected products include Dvsekhvalnov Jose2go.

How do I fix CVE-2025-63811?

Upgrade affected software to a fixed version, for example Dvsekhvalnov Jose2go 1.7.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-63811 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.