Vulnerability in Lighttpd

CVE-2022-30780

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…

EPSS: 0.564 (99.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Lighttpd — versions 1.4.56, 1.4.57, 1.4.58
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Product, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-30780?
CVE-2022-30780 is a high-severity vulnerability in Lighttpd, classified under Incorrect Calculation. CVSS score: 7.5/10. Published 2022-06-11.
How severe is CVE-2022-30780?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-30780 known to be exploited?
19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.