How severe is CVE-2014-4883?

CVE-2014-4883 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-4883 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4883?

CVE-2014-4883 affects Lwip Project Lwip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-4883?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-4883 published?

CVE-2014-4883 was published on 2014-11-28 and last updated on 2026-06-17.

CVE-2014-4883

CVE-2014-4883 is a medium-severity vulnerability in Lwip Project Lwip with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-345.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Lwip Project Lwip
Published: 2014-11-28
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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, 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.
How severe is CVE-2014-4883?: CVE-2014-4883 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-4883 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4883?: CVE-2014-4883 affects Lwip Project Lwip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-4883?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-4883 published?: CVE-2014-4883 was published on 2014-11-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lwip_project:lwip:*:*:*:*:*:*:*:*

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