CVE-2017-5581

Tigervnc vulnerability

CVSS

9.8

EPSS

4.2%

EPSS pct

90th

Exploited

No known

Buffer overflow in the ModifiablePixelBuffer::fillRect function in TigerVNC before 1.7.1 allows remote servers to execute arbitrary code via an RRE message with subrectangle outside framebuffer boundaries.

Affected vendor

Tigervnc

Affected product

Tigervnc

CVSS vector

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

Weakness type (CWE)

CWE-119 — Improper Restriction of Operations within Memory Bounds

Published

2017-02-28

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2017-5581

Confirm whether Tigervnc Tigervnc is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-5581.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-5581

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-5581 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2017-5581?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2017-5581.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL

CVE-2020-10055

Desigo Consumption Control vulnerability