How severe is CVE-2024-49214?

CVE-2024-49214 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2024-49214 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-49214?

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

Does CVE-2024-49214 have an EU (EUVD) identifier?

Yes. CVE-2024-49214 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-43285.

When was CVE-2024-49214 published?

CVE-2024-49214 was published on 2024-10-14 and last updated on 2026-06-17.

CVE-2024-49214

CVE-2024-49214 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-290.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-43285
Weakness: CWE-290
Published: 2024-10-14
Last modified: 2026-06-17

Description

QUIC in HAProxy 3.1.x before 3.1-dev7, 3.0.x before 3.0.5, and 2.9.x before 2.9.11 allows opening a 0-RTT session with a spoofed IP address. This can bypass the IP allow/block list functionality.

Frequently asked questions

What is CVE-2024-49214?: QUIC in HAProxy 3.1.x before 3.1-dev7, 3.0.x before 3.0.5, and 2.9.x before 2.9.11 allows opening a 0-RTT session with a spoofed IP address. This can bypass the IP allow/block list functionality.
How severe is CVE-2024-49214?: CVE-2024-49214 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2024-49214 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-49214?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-49214 have an EU (EUVD) identifier?: Yes. CVE-2024-49214 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-43285.
When was CVE-2024-49214 published?: CVE-2024-49214 was published on 2024-10-14 and last updated on 2026-06-17.

References

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