How severe is CVE-2026-49975?

CVE-2026-49975 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-2026-49975 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-49975?

CVE-2026-49975 primarily affects Apache Http Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-49975?

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.

Does CVE-2026-49975 have an EU (EUVD) identifier?

Yes. CVE-2026-49975 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35105.

When was CVE-2026-49975 published?

CVE-2026-49975 was published on 2026-06-08 and last updated on 2026-08-19.

CVE-2026-49975

CVE-2026-49975 is a high-severity vulnerability in Apache Http Server 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-789.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 4% (91st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35105
Weakness: CWE-789
Affected product: Apache Http Server
Published: 2026-06-08
Last modified: 2026-08-19

Description

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

Frequently asked questions

What is CVE-2026-49975?: Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.
How severe is CVE-2026-49975?: CVE-2026-49975 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-2026-49975 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-49975?: CVE-2026-49975 primarily affects Apache Http Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-49975?: 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.
Does CVE-2026-49975 have an EU (EUVD) identifier?: Yes. CVE-2026-49975 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35105.
When was CVE-2026-49975 published?: CVE-2026-49975 was published on 2026-06-08 and last updated on 2026-08-19.

References

Affected products (2)

cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

62.210.142.61 (ipv4-addr)
50.255.62.89 (ipv4-addr)
103.159.51.70 (ipv4-addr)
62.210.142.178 (ipv4-addr)
62.210.142.173 (ipv4-addr)
2.26.49.39 (ipv4-addr)
160.119.76.10 (ipv4-addr)
95.167.225.76 (ipv4-addr)