How severe is CVE-2017-7177?

CVE-2017-7177 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 high, and availability none.

Is CVE-2017-7177 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7177?

CVE-2017-7177 affects Openinfosecfoundation Suricata. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-7177?

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-2017-7177 published?

CVE-2017-7177 was published on 2017-03-18 and last updated on 2026-06-17.

CVE-2017-7177

CVE-2017-7177 is a high-severity vulnerability in Openinfosecfoundation Suricata 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-358.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-358
Affected product: Openinfosecfoundation Suricata
Published: 2017-03-18
Last modified: 2026-06-17

Description

Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check for the IP protocol during fragment matching.

Frequently asked questions

What is CVE-2017-7177?: Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check for the IP protocol during fragment matching.
How severe is CVE-2017-7177?: CVE-2017-7177 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 high, and availability none.
Is CVE-2017-7177 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7177?: CVE-2017-7177 affects Openinfosecfoundation Suricata. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-7177?: 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-2017-7177 published?: CVE-2017-7177 was published on 2017-03-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:*

More vulnerabilities in Openinfosecfoundation Suricata

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CVE-2013-5919 — Medium (CVSS 5.0): Suricata before 1.4.6 allows remote attackers to cause a denial of service (crash) via a malformed SSL record.

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