Is CVE-2017-5884 in the CISA KEV catalog?

No. CVE-2017-5884 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-5884?

CVE-2017-5884 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2017-5884?

CVE-2017-5884 has an EPSS score of 2.24% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-5884?

Upgrade gtk-vnc on debian 11 to 0.6.0-3 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2017-5884

HIGHEPSS 81th pctl

7.8

CVSS v3

NVD

Description

gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles, which allows remote servers to execute arbitrary code via the src x, y coordinates in a crafted (1) rre, (2) hextile, or (3) copyrect tile.

CWE-118

How to fix

Remediation Available

gtk-vncDebian

Fixed in:0.6.0-3CVE-2017-5884

gtk-vncUbuntu

Fixed in:0.5.3-0ubuntu2.1USN-3203-1

libgtk-vnc-1.0-0Ubuntu

Fixed in:0.5.3-0ubuntu2.1USN-3203-1

libgtk-vnc-2.0-0Ubuntu

Fixed in:0.5.3-0ubuntu2.1USN-3203-1

libgvnc-1.0-0Ubuntu

Fixed in:0.5.3-0ubuntu2.1USN-3203-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.24%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

git.gnome.org

Exploit1

bugzilla.gnome.org

Third-Party Advisory3

Other references2

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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 2026-05-13.