CVE-2022-30780

HIGH
Published Jun 11, 20224y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Jun 11, 2022 4y ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-682

Affected Products 3

VendorProductVersionRange
lighttpdlighttpd1.4.56any
lighttpdlighttpd1.4.57any
lighttpdlighttpd1.4.58any

References 4

  • github.com https://github.com/lighttpd/lighttpd1.4
    ProductThird Party Advisory
  • github.com https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service
    ExploitThird Party Advisory
  • podalirius.net https://podalirius.net/en/cves/2022-30780/
    ExploitThird Party Advisory
  • redmine.lighttpd.net https://redmine.lighttpd.net/issues/3059
    Issue TrackingPatchVendor Advisory

Remediation