How severe is CVE-2016-2225?

CVE-2016-2225 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-2016-2225 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2225?

CVE-2016-2225 affects Uclibc-ng Project Uclibc-ng. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-2225?

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-2016-2225 published?

CVE-2016-2225 was published on 2017-03-24 and last updated on 2026-06-17.

CVE-2016-2225

CVE-2016-2225 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: 2% (82nd 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 __read_etc_hosts_r 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 a crafted packet.

Frequently asked questions

What is CVE-2016-2225?: The __read_etc_hosts_r 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 a crafted packet.
How severe is CVE-2016-2225?: CVE-2016-2225 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-2016-2225 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2225?: CVE-2016-2225 affects Uclibc-ng Project Uclibc-ng. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-2225?: 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-2016-2225 published?: CVE-2016-2225 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:*:*:*:*:*:*:*:*

More vulnerabilities in Uclibc-ng Project Uclibc-ng

CVE-2022-29503 — Critical (CVSS 9.8): A memory corruption vulnerability exists in the libpthread linuxthreads functionality of uClibC 0.9.33.2 and uClibC-ng…
CVE-2021-43523 — Critical (CVSS 9.6): In uClibc and uClibc-ng before 1.0.39, incorrect handling of special characters in domain names returned by DNS servers…
CVE-2016-2224 — High (CVSS 7.5): The __decode_dotted function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a…
CVE-2016-6264 — High (CVSS 7.5): Integer signedness error in libc/string/arm/memset.S in uClibc and uClibc-ng before 1.0.16 allows context-dependent…
CVE-2021-27419 — High (CVSS 7.3): uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in functions malloc-simple. This improper…
CVE-2022-30295 — Medium (CVSS 6.5): uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache…

All CVEs affecting Uclibc-ng Project Uclibc-ng →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →