How severe is CVE-2016-2224?

CVE-2016-2224 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-2224 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2224?

CVE-2016-2224 affects Uclibc-ng Project Uclibc-ng. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-2224?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-2224 published?

CVE-2016-2224 was published on 2017-03-24 and last updated on 2026-06-17.

CVE-2016-2224

CVE-2016-2224 is a high-severity vulnerability in Uclibc-ng Project Uclibc-ng with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Uclibc-ng Project Uclibc-ng
Published: 2017-03-24
Last modified: 2026-06-17

Description

The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a denial of service (infinite loop) via vectors involving compressed items in a reply.

Frequently asked questions

What is CVE-2016-2224?: The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a denial of service (infinite loop) via vectors involving compressed items in a reply.
How severe is CVE-2016-2224?: CVE-2016-2224 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-2224 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2224?: CVE-2016-2224 affects Uclibc-ng Project Uclibc-ng. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-2224?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-2224 published?: CVE-2016-2224 was published on 2017-03-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:uclibc-ng_project:uclibc-ng:*:*:*:*:*:*:*:*

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