CVE-2013-5745: The vino_server_client_data_pending function in vino-server.c in GNOME Vino 2.26.1, 2.32.1, 3.7.3, and earlier

Q: How do I fix CVE-2013-5745?

vino: upgrade to newer than 3.7.3; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2013-5745 being exploited?

CVE-2013-5745 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2013-5745 affect?

CVE-2013-5745 affects vino, ubuntu linux. Severity is high (CVSS 7.1). The vino_server_client_data_pending function in vino-server.c in GNOME Vino 2.26.1, 2.32.1, 3.7.3, and earlier, and 3.8 when encryption is disabled, does not properly clear client data when an error causes the connection to close during aut

Q: How urgent is CVE-2013-5745?

Priority 59/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference; On your watchlist

This week

HIGH 7.1WATCHLISTUPGRADEMITIGATE

CVE-2013-5745 is a high-severity flaw (CVSS 7.1) affecting vino, ubuntu linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The vino_server_client_data_pending function in vino-server.c in GNOME Vino 2.26.1, 2.32.1, 3.7.3, and earlier, and 3.8 when encryption is disabled, does not properly clear client data when an error causes the connection to close during authentication, which allows remote attackers to cause a denial of service (infinite loop, CPU and disk consumption) via multiple crafted requests during authentication.

Why this priority

High severity
EPSS top 5%: very likely to be exploited
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
EPSS exploit chance	8.7% (top 5%)
CISA exploited list	No
Weakness	CWE-20
Published	2013-10-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: canonical · david king

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-10-01 17:55 UTCPublished CVE record published
2026-06-16 23:59 UTCUpdated Record last modified

david king vino UPGRADE

Affected: <= 3.7.3 · 0.12 · 0.14 · 2.7 · 2.7.3 · 2.7.3.1 · 2.7.4 · 2.7.4.90

Fixed in: newer than 3.7.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy vino || rpm -q vino || vino --version

2. UPGRADE to newer than 3.7.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade vino

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vino

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

canonical ubuntu linux MITIGATE

Affected: 12.04 · 12.10 · 13.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.04

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Vino VNC Server 3.7.3 - Persistent Denial of Service

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-5745?

vino: upgrade to newer than 3.7.3; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-5745 being exploited?

CVE-2013-5745 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-5745 affect?

CVE-2013-5745 affects vino, ubuntu linux. Severity is high (CVSS 7.1). The vino_server_client_data_pending function in vino-server.c in GNOME Vino 2.26.1, 2.32.1, 3.7.3, and earlier, and 3.8 when encryption is disabled, does not properly clear client data when an error causes the connection to close during aut

How urgent is CVE-2013-5745?

Priority 59/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference; On your watchlist

Software pages

Ubuntu vulnerabilities

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References

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