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CVE-2023-44487

HighCVSS 7.5 / 10
Published Oct 10, 2023·Last modified May 12, 2026
Affected Components(0)

No affected components available

Description

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.

Threat Intelligence
7.5

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
100.00%

The exploit probability is critical. The vulnerability is very likely to be exploited in the next 30 days.

Exploit
26 exploits

26 exploits found for this vulnerability.

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