How severe is CVE-2024-30949?

CVE-2024-30949 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-30949 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-30949?

CVE-2024-30949 affects Newlib Project Newlib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-30949?

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

Does CVE-2024-30949 have an EU (EUVD) identifier?

Yes. CVE-2024-30949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-28867.

When was CVE-2024-30949 published?

CVE-2024-30949 was published on 2024-08-20 and last updated on 2026-06-17.

CVE-2024-30949

CVE-2024-30949 is a critical-severity vulnerability in Newlib Project Newlib with a CVSS 3.x base score of 9.8. 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-190.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-28867
Weakness: CWE-190
Affected product: Newlib Project Newlib
Published: 2024-08-20
Last modified: 2026-06-17

Description

An issue in newlib v.4.3.0 allows an attacker to execute arbitrary code via the time unit scaling in the _gettimeofday function.

Frequently asked questions

What is CVE-2024-30949?: An issue in newlib v.4.3.0 allows an attacker to execute arbitrary code via the time unit scaling in the _gettimeofday function.
How severe is CVE-2024-30949?: CVE-2024-30949 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-30949 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-30949?: CVE-2024-30949 affects Newlib Project Newlib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-30949?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-30949 have an EU (EUVD) identifier?: Yes. CVE-2024-30949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-28867.
When was CVE-2024-30949 published?: CVE-2024-30949 was published on 2024-08-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:newlib_project:newlib:4.3.0:*:*:*:*:*:*:*

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