CVE-2014-4883
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier,...
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets.
Exploit likelihood
What each source reports
NVD Score used
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets.
- Record
CVE-2014-4883- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-345
- Updated
- 2026-11-02
CVE List No score
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets.
- Record
CVE-2014-4883- Updated
- 2026-11-02
EUVDEUVD-2014-4802 No score
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets.
- Record
EUVD-2014-4802- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r2m4-j583-8hw8 No score
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier,...
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets.
- Record
GHSA-r2m4-j583-8hw8- Weakness
- CWE-345
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2014-4883 No score
resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets.
- Record
UBUNTU-CVE-2014-4883- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lwipv6Ubuntu:16.04:LTS |
All versions, plus listed versions 1.5a-2ubuntu2 |
None known |
lwipv6Ubuntu:18.04:LTS |
All versions, plus listed versions 1.5a-2ubuntu2 |
None known |
lwipv6Ubuntu:20.04:LTS |
All versions, plus listed versions 1.5a-4 |
None known |
lwipv6Ubuntu:22.04:LTS |
All versions, plus listed versions 1.5a-9 |
None known |
lwipv6Ubuntu:24.04:LTS |
All versions, plus listed versions 1.5a-91.5a-9.11.5a-9.1build1 |
None known |
lwipv6Ubuntu:25.10 |
All versions, plus listed versions 1.5a-101.5a-10.1 |
None known |
lwipv6Ubuntu:26.10 |
All versions, plus listed versions 1.5a-10.1build1 |
None known |
lwipv6Ubuntu:26.04:LTS |
All versions, plus listed versions 1.5a-10.11.5a-10.1build1 |
None known |
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-2014-4883 is a medium vulnerability (CVSS 4.3) in Lwip Project Lwip, published November 28, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. No source names a fixed version.
References
kb.cert.org/vuls/id/210620
git.savannah.gnu.org/cgit/lwip.git/commit?id=9fb46e120655ac481b2af8f865d5ae56c39b831a
nvd.nist.gov/vuln/detail/CVE-2014-4883
github.com/advisories/GHSA-r2m4-j583-8hw8
ubuntu.com/security/CVE-2014-4883
bugzilla.redhat.com/show_bug.cgi?id=1169008
cve.org/CVERecord?id=CVE-2014-4883