CVE-2017-18922

highPriorität · verfolgen · 40EPSS 0.023 · 83. PerzentilDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
2.26% (83rd) EPSS
CVSS 7.5 · high
Is it mine?
138 products
Prüfe deine Angriffsfläche
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · bewertet 2026-10-27

It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.8
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 6.4
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · CISA US
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Red Hat Product Security US
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-787USprimärCWE-120USCWE-122USCWE-787USCWE-787USCWE-787US
04

betroffene Produkte (138)

Betroffene Produkte und Versionsbereiche.

20 von 138 angezeigt
05

Advisories (6)

Hersteller- und Ökosystem-Meldungen dazu.

  • RHSA-2020:3281Red Hat Security Advisory: libvncserver security update2020-08-03csaf · redhat_csafUS

    An update for libvncserver is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • RHSA-2020:3385Red Hat Security Advisory: libvncserver security update2020-08-10csaf · redhat_csafUS

    An update for libvncserver is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • RHSA-2020:3456Red Hat Security Advisory: libvncserver security update2020-08-17csaf · redhat_csafUS

    An update for libvncserver is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • RHSA-2020:3588Red Hat Security Advisory: libvncserver security update2020-09-01csaf · redhat_csafUS

    An update for libvncserver is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • SSA-390195SSA-390195: LibVNC Vulnerabilities in SIMATIC ITC Products2021-12-14csaf · siemens_psirtDE

    Multiple LibVNC vulnerabilities in the affected products listed below could allow remote code execution, information disclosure and Denial-of-Service attacks under certain conditions. Siemens has released updates for the affected products and recommends to update to the latest versions.

  • ICSA-21-350-12Siemens SIMATIC ITC2021-12-14icsa · cisa_csaf_otUS

    Multiple LibVNC vulnerabilities in the affected products listed below could allow remote code execution, information disclosure and Denial-of-Service attacks under certain conditions. Siemens has released updates for the affected products and recommends to update to the latest versions.

06

auch bekannt als (5)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bducisa_csaf_otredhat_csafsiemens_psirtNVDCVE.orgMITRE
veröffentlicht 2020-06-30geändert 2026-06-17
09

Referenzen (54)

Externe Belege — Patches, Meldungen, Analysen.

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