How severe is CVE-2025-29917?

CVE-2025-29917 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-29917 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-29917?

CVE-2025-29917 affects Oisf Suricata. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-29917?

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

Does CVE-2025-29917 have an EU (EUVD) identifier?

Yes. CVE-2025-29917 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10710.

When was CVE-2025-29917 published?

CVE-2025-29917 was published on 2025-04-10 and last updated on 2026-06-17.

CVE-2025-29917

CVE-2025-29917 is a medium-severity vulnerability in Oisf Suricata with a CVSS 3.x base score of 6.2. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-10710
Weakness: CWE-770
Affected product: Oisf Suricata
Published: 2025-04-10
Last modified: 2026-06-17

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.

Frequently asked questions

What is CVE-2025-29917?: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.
How severe is CVE-2025-29917?: CVE-2025-29917 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-29917 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-29917?: CVE-2025-29917 affects Oisf Suricata. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-29917?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-29917 have an EU (EUVD) identifier?: Yes. CVE-2025-29917 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10710.
When was CVE-2025-29917 published?: CVE-2025-29917 was published on 2025-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*

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