How severe is CVE-2017-7397?

CVE-2017-7397 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-2017-7397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7397?

CVE-2017-7397 affects Backbox Backbox Linux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-7397?

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-2017-7397 published?

CVE-2017-7397 was published on 2017-04-03 and last updated on 2026-06-17.

CVE-2017-7397

CVE-2017-7397 is a high-severity vulnerability in Backbox Backbox Linux with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. 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: 11% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Backbox Backbox Linux
Published: 2017-04-03
Last modified: 2026-06-17

Description

BackBox Linux 4.6 allows remote attackers to cause a denial of service (ksoftirqd CPU consumption) via a flood of packets with Martian source IP addresses (as defined in RFC 1812 section 5.3.7). This product enables net.ipv4.conf.all.log_martians by default. NOTE: the vendor reports "It has been proved that this vulnerability has no foundation and it is totally fake and based on false assumptions.

Frequently asked questions

What is CVE-2017-7397?: BackBox Linux 4.6 allows remote attackers to cause a denial of service (ksoftirqd CPU consumption) via a flood of packets with Martian source IP addresses (as defined in RFC 1812 section 5.3.7). This product enables net.ipv4.conf.all.log_martians by default. NOTE: the vendor reports "It has been proved that this vulnerability has no foundation and it is totally fake and based on false assumptions.
How severe is CVE-2017-7397?: CVE-2017-7397 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-2017-7397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7397?: CVE-2017-7397 affects Backbox Backbox Linux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-7397?: 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-2017-7397 published?: CVE-2017-7397 was published on 2017-04-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:backbox:backbox_linux:4.6:*:*:*:*:*:*:*

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