How severe is CVE-2022-30522?

CVE-2022-30522 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-2022-30522 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 90% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30522?

CVE-2022-30522 primarily affects Apache Http Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-30522?

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-2022-30522 published?

CVE-2022-30522 was published on 2022-06-09 and last updated on 2026-06-17.

CVE-2022-30522

CVE-2022-30522 is a high-severity vulnerability in Apache Http Server with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 90% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 90% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Apache Http Server
Published: 2022-06-09
Last modified: 2026-06-17

Description

If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the input to mod_sed may be very large, mod_sed may make excessively large memory allocations and trigger an abort.

Frequently asked questions

What is CVE-2022-30522?: If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the input to mod_sed may be very large, mod_sed may make excessively large memory allocations and trigger an abort.
How severe is CVE-2022-30522?: CVE-2022-30522 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-2022-30522 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 90% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30522?: CVE-2022-30522 primarily affects Apache Http Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-30522?: 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-2022-30522 published?: CVE-2022-30522 was published on 2022-06-09 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:apache:http_server:2.4.53:*:*:*:*:*:*:*
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

103.158.40.65 (ipv4-addr)
24.187.213.29 (ipv4-addr)
190.181.4.12 (ipv4-addr)
80.82.17.102 (ipv4-addr)
112.216.129.27 (ipv4-addr)