CVE-2022-30780

high-risk
Published 2022-06-11

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.

Do I need to act?

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81.8% chance of exploitation in next 30 days
EPSS score — higher than 18% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Lighttpd

References (8)

Product https://github.com/lighttpd/lighttpd1.4
Exploit https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service
Exploit https://podalirius.net/en/cves/2022-30780/
Issue Tracking https://redmine.lighttpd.net/issues/3059
Product https://github.com/lighttpd/lighttpd1.4
Exploit https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service
Exploit https://podalirius.net/en/cves/2022-30780/
Issue Tracking https://redmine.lighttpd.net/issues/3059
55
/ 100
high-risk
Severity 26/34 · High
Exploitability 20/34 · Moderate
Exposure 9/34 · Low