VulnerabilityModified

CVE-2018-1333

By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service.

HIGH 7.5EPSS 16.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 16.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service. Fixed in Apache HTTP Server 2.4.34 (Affected 2.4.18-2.4.30,2.4.33).

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 16.52% probability · 97th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-400
Affected: apache/http server · redhat/jboss core services · canonical/ubuntu linux · netapp/cloud backup · netapp/storage automation store
Source: security@apache.org

EPSS trend

EPSS 16.5% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

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