synced 4 MIN AGO
01 Record

CVE-2019-15680

TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.

UnratedPUBLISHEDCNA: Kaspersky
CNA base scoreUnratedNo CNA CVSS vector

02 Description

TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.66% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 85.4% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-10-29 16:45Z7 YR AGO
Last updated
2024-08-05 00:56Z2 YR AGO
Reserved
2019-08-27
Assigning CNA
Kaspersky
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-476NULL Pointer DereferenceBase
Data version
5.1
Document digest
e126647ee844a6f362e13fc051566b51bdf9a7c2618f983e0edbcccaa991cdf5

05 Affected products

VendorProductVersionsPlatforms
KasperskyTightVNC1.3.10—

06 References

07 Fixed in

Debian 12

  • libvncserver
    No fix yet
  • tightvnc
    Fixed in 1:1.3.9-9.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • libvncserver
    No fix yet
  • tightvnc
    Fixed in 1:1.3.9-9.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • libvncserver
    No fix yet
  • tightvnc
    Fixed in 1:1.3.9-9.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • x11vnc
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • libvncserver
    Fixed in 0.9.10+dfsg-3ubuntu0.16.04.4
  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • libvncserver
    Fixed in 0.9.11+dfsg-1ubuntu1.2
  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • libvncserver
    Fixed in 0.9.12+dfsg-9ubuntu0.1
  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • veyon
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • veyon
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • veyon
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • veyon
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • veyon
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • ssvnc
    No fix yet
  • tightvnc
    No fix yet
  • veyon
    No fix yet
  • vncsnapshot
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • tightvnc
    Fixed in 1.3.9-6.5+deb8u1build0.14.04.1~esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.