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Vulnerability details: VCID-9pxd-msbk-skcy
Vulnerability ID VCID-9pxd-msbk-skcy
Aliases CVE-2022-22707
Summary In lighttpd 1.4.46 through 1.4.63, the mod_extforward_Forwarded function of the mod_extforward plugin has a stack-based buffer overflow (4 bytes representing -1), as demonstrated by remote denial of service (daemon crash) in a non-default configuration. The non-default configuration requires handling of the Forwarded header in a somewhat unusual manner. Also, a 32-bit system is much more likely to be affected than a 64-bit system.
Status Published
Exploitability 0.5
Weighted Severity 5.3
Risk 2.6
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
epss 0.00325 https://api.first.org/data/v1/epss?cve=CVE-2022-22707
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2022-22707
cvssv3.1 5.9 https://nvd.nist.gov/vuln/detail/CVE-2022-22707
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2022-22707
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22707
https://redmine.lighttpd.net/issues/3134
https://www.debian.org/security/2022/dsa-5040
cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
CVE-2022-22707 https://nvd.nist.gov/vuln/detail/CVE-2022-22707
USN-5903-1 https://usn.ubuntu.com/5903-1/
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2022-22707
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-22707
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.54882
EPSS Score 0.00325
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:30:16.184286+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.16/main.json 37.0.0