VulnerabilityModified

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.

HIGH 7.5EPSS 33.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 33.0%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 32.95% probability · 98th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-789, CWE-409
Affected: apache/http server · debian/debian linux
Source: security@apache.org

EPSS trend

EPSS moved from 4.2% on 24 September 2026 to 33.0% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.