CVE-2022-30780

7.5 highEPSS 57%

High (7.5) in lighttpd lighttpd. EPSS 57% chance of exploitation in the next 30 days.

Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 57% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CWE: CWE-682
Published: 2022-06-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

lighttpd:lighttpd

References

https://github.com/lighttpd/lighttpd1.4
https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service
https://podalirius.net/en/cves/2022-30780/
https://redmine.lighttpd.net/issues/3059
https://github.com/lighttpd/lighttpd1.4

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