CVE-2005-2806: client.cpp in BNBT EasyTracker 7.7r3.2004.10.27 and earlier allows remote attackers to cause a denial of servi

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MEDIUM 5.0DOWNGRADE

CVE-2005-2806 is a medium-severity flaw (CVSS 5.0) affecting bnbt. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

client.cpp in BNBT EasyTracker 7.7r3.2004.10.27 and earlier allows remote attackers to cause a denial of service (application hang) via an HTTP header containing only a ":" (colon), possibly leading to an integer signedness error due to a missing field name or value.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-20
Published	2005-09-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: trevor hogan

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

Am I affected?

Timeline

2005-09-06 22:03 UTCPublished CVE record published
2026-06-16 22:15 UTCUpdated Record last modified

trevor hogan bnbt DOWNGRADE

Affected: 7.5_beta_release2 · 7.5_beta_release3 · 7.7_2004-10-27_r3

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.5_beta_release2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.5_beta_release2 (Debian / Ubuntu)

apt-cache madison bnbt sudo apt install bnbt=<VERSION_BEFORE_7.5_beta_release2> sudo apt-mark hold bnbt

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

dnf --showduplicates list bnbt sudo dnf downgrade bnbt-<VERSION_BEFORE_7.5_beta_release2> sudo dnf versionlock add bnbt

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.

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-2005-2806?

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

Is CVE-2005-2806 being exploited?

CVE-2005-2806 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-2005-2806 affect?

CVE-2005-2806 affects bnbt. Severity is medium (CVSS 5.0). client.cpp in BNBT EasyTracker 7.7r3.2004.10.27 and earlier allows remote attackers to cause a denial of service (application hang) via an HTTP header containing only a ":" (colon), possibly leading to an integer signedness error due to a m

How urgent is CVE-2005-2806?

Priority 42/100. Public exploit reference

Related CVEs

CVE-2004-2029 MEDIUM 5.0 DOWNGRADE The Util_DecodeHTTPAuth function in BNBT BitTorrent Tracker Beta 7.5 Release 2 and earlier allows remote attac

References

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