How severe is CVE-2023-28882?

CVE-2023-28882 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-2023-28882 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28882?

CVE-2023-28882 affects Owasp Modsecurity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28882?

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-2023-28882 published?

CVE-2023-28882 was published on 2023-04-28 and last updated on 2026-06-17.

CVE-2023-28882

CVE-2023-28882 is a high-severity vulnerability in Owasp Modsecurity 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Owasp Modsecurity
Published: 2023-04-28
Last modified: 2026-06-17

Description

Trustwave ModSecurity 3.0.5 through 3.0.8 before 3.0.9 allows a denial of service (worker crash and unresponsiveness) because some inputs cause a segfault in the Transaction class for some configurations.

Frequently asked questions

What is CVE-2023-28882?: Trustwave ModSecurity 3.0.5 through 3.0.8 before 3.0.9 allows a denial of service (worker crash and unresponsiveness) because some inputs cause a segfault in the Transaction class for some configurations.
How severe is CVE-2023-28882?: CVE-2023-28882 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-2023-28882 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28882?: CVE-2023-28882 affects Owasp Modsecurity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28882?: 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-2023-28882 published?: CVE-2023-28882 was published on 2023-04-28 and last updated on 2026-06-17.

References

https://www.trustwave.com/en-us/resources/security-resources/software-updates/announcing-modsecurity-version-309/

Affected products (1)

cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:*

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