Is CVE-2020-25708 in the CISA KEV catalog?

No. CVE-2020-25708 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-25708?

CVE-2020-25708 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-25708?

CVE-2020-25708 has an EPSS score of 1.61% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-25708?

Upgrade libvncserver on debian 11 to 0.9.13+dfsg-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2020-25708

HIGHEPSS 73th pctl

7.5

CVSS v3

NVD

Description

A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.

CWE-369

How to fix

Remediation Available

libvncserverDebian

Fixed in:0.9.13+dfsg-1CVE-2020-25708

libvncclient1Ubuntu

Fixed in:0.9.10+dfsg-3ubuntu0.16.04.6USN-4636-1

Fixed in:0.9.11+dfsg-1ubuntu1.4USN-4636-1

Fixed in:0.9.12+dfsg-9ubuntu0.3USN-4636-1

libvncserverUbuntu

Fixed in:0.9.10+dfsg-3ubuntu0.16.04.6USN-4636-1

Fixed in:0.9.11+dfsg-1ubuntu1.4USN-4636-1

Fixed in:0.9.12+dfsg-9ubuntu0.3USN-4636-1

libvncserver1Ubuntu

Fixed in:0.9.10+dfsg-3ubuntu0.16.04.6USN-4636-1

Fixed in:0.9.11+dfsg-1ubuntu1.4USN-4636-1

Fixed in:0.9.12+dfsg-9ubuntu0.3USN-4636-1

vinoUbuntu

Fixed in:3.8.1-0ubuntu9.4USN-4636-1

Fixed in:3.22.0-3ubuntu1.2USN-4636-1

Fixed in:3.22.0-5ubuntu2.2USN-4636-1

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.61%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Third-Party Advisory1

lists.debian.org

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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 2024-11-21.