How severe is CVE-2019-9826?

CVE-2019-9826 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-2019-9826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9826?

CVE-2019-9826 affects Phpbb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-9826?

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-2019-9826 published?

CVE-2019-9826 was published on 2019-05-02 and last updated on 2026-06-17.

CVE-2019-9826

CVE-2019-9826 is a high-severity vulnerability in Phpbb 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Phpbb
Published: 2019-05-02
Last modified: 2026-06-17

Description

The fulltext search component in phpBB before 3.2.6 allows Denial of Service.

Frequently asked questions

What is CVE-2019-9826?: The fulltext search component in phpBB before 3.2.6 allows Denial of Service.
How severe is CVE-2019-9826?: CVE-2019-9826 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-2019-9826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9826?: CVE-2019-9826 affects Phpbb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-9826?: 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-2019-9826 published?: CVE-2019-9826 was published on 2019-05-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:*

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