CVE-2018-13417: In Vuze Bittorrent Client 5.7.6.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-13417 is a critical-severity flaw (CVSS 9.8) affecting bittorrent client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Vuze Bittorrent Client 5.7.6.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running Vuze, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connec

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	20.4% (top 3%)
CISA exploited list	No
Weakness	CWE-611
Published	2018-08-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vuze

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-08-13 17:29 UTCPublished CVE record published
2026-06-17 01:39 UTCUpdated Record last modified

vuze bittorrent client DOWNGRADE

Affected: 5.7.6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.7.6.0

1. Check installed version

apt-cache policy bittorrent-client || rpm -q bittorrent-client || bittorrent-client --version

2. No fixed release: DOWNGRADE to a release before 5.7.6.0 (Debian / Ubuntu)

apt-cache madison bittorrent-client sudo apt install bittorrent-client=<VERSION_BEFORE_5.7.6.0> sudo apt-mark hold bittorrent-client

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list bittorrent-client sudo dnf downgrade bittorrent-client-<VERSION_BEFORE_5.7.6.0> sudo dnf versionlock add bittorrent-client

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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: Vuze Bittorrent Client 5.7.6.0 - SSDP Processing XML External Entity Injection

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-2018-13417?

bittorrent client: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-13417 being exploited?

CVE-2018-13417 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-2018-13417 affect?

CVE-2018-13417 affects bittorrent client. Severity is critical (CVSS 9.8). In Vuze Bittorrent Client 5.7.6.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary fil

How urgent is CVE-2018-13417?

Priority 69/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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