Is CVE-2018-7225 in the CISA KEV catalog?

No. CVE-2018-7225 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-7225?

CVE-2018-7225 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2018-7225?

CVE-2018-7225 has an EPSS score of 6.22% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-7225?

Upgrade libvncserver on debian 11 to 0.9.11+dfsg-1.1 or later. Fixes are available for 9 affected products.

CVE & CISA-KEV Catalog

CVE-2018-7225

CRITICALEPSS 93th pctl

9.8

CVSS v3

NVD

Description

An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.

CWE-190Integer Overflow

How to fix

Remediation Available

libvncserverDebian

Fixed in:0.9.11+dfsg-1.1CVE-2018-7225

italcUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

Fixed in:1:3.0.3+dfsg1-3ubuntu0.1USN-4547-1

italc-clientUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

Fixed in:1:3.0.3+dfsg1-3ubuntu0.1USN-4547-1

italc-masterUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

Fixed in:1:3.0.3+dfsg1-3ubuntu0.1USN-4547-1

libitalccoreUbuntu

Fixed in:1:2.0.2+dfsg1-4ubuntu0.1USN-4587-1

Fixed in:1:3.0.3+dfsg1-3ubuntu0.1USN-4547-1

libvncserverUbuntu

Fixed in:0.9.9+dfsg-1ubuntu1.3USN-3618-1

Fixed in:0.9.10+dfsg-3ubuntu0.16.04.2USN-3618-1

libvncserver0Ubuntu

Fixed in:0.9.9+dfsg-1ubuntu1.3USN-3618-1

libvncserver1Ubuntu

Fixed in:0.9.10+dfsg-3ubuntu0.16.04.2USN-3618-1

vinoUbuntu

Fixed in:3.8.1-0ubuntu9.3USN-4573-1

Fixed in:3.22.0-3ubuntu1.1USN-4573-1

Fixed in:3.22.0-5ubuntu2.1USN-4573-1

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

6.22%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Exploit1

openwall.com

Third-Party Advisory6

Other references7

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

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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.