CVE-2005-0877
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that...
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
- Record
CVE-2005-0877- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
CVE List No score
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
- Record
CVE-2005-0877- Updated
- 2026-11-02
EUVDEUVD-2005-0878 No score
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
- Record
EUVD-2005-0878- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h3r9-mx35-pp5w
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that...
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
- Record
GHSA-h3r9-mx35-pp5w- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSV
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
- Record
CVE-2005-0877- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2005-0877
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
- Record
DEBIAN-CVE-2005-0877- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2005-0877 is a high vulnerability (CVSS 7.5) in Thekelleys Dnsmasq, published March 26, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.97%, the 80th percentile. Fixed in dnsmasq 2.21.