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Vulnerability details: VCID-zr3a-8c2c-aye1
Vulnerability ID VCID-zr3a-8c2c-aye1
Aliases CVE-2022-30556
Summary Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-30556.json
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.0019 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
epss 0.00195 https://api.first.org/data/v1/epss?cve=CVE-2022-30556
cvssv3.1 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd low https://httpd.apache.org/security/json/CVE-2022-30556.json
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2022-30556
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2022-30556
archlinux Medium https://security.archlinux.org/AVG-2763
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-30556.json
https://api.first.org/data/v1/epss?cve=CVE-2022-30556
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30556
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QUGG2QZWHTITMABFLVXA4DNYUOTPWYQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPY2BLEVJWFH34AX77ZJPLD2OOBYR6ND/
https://security.netapp.com/advisory/ntap-20220624-0005/
http://www.openwall.com/lists/oss-security/2022/06/08/7
1012513 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1012513
2095018 https://bugzilla.redhat.com/show_bug.cgi?id=2095018
AVG-2763 https://security.archlinux.org/AVG-2763
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
CVE-2022-30556 https://httpd.apache.org/security/json/CVE-2022-30556.json
CVE-2022-30556 https://nvd.nist.gov/vuln/detail/CVE-2022-30556
RHSA-2022:6753 https://access.redhat.com/errata/RHSA-2022:6753
RHSA-2022:7647 https://access.redhat.com/errata/RHSA-2022:7647
RHSA-2022:8067 https://access.redhat.com/errata/RHSA-2022:8067
USN-5487-1 https://usn.ubuntu.com/5487-1/
USN-5487-3 https://usn.ubuntu.com/5487-3/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-30556.json
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
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2022-30556
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:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2022-30556
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 0.25623
EPSS Score 0.00084
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:09.492568+00:00 Apache HTTPD Importer Import https://httpd.apache.org/security/json/CVE-2022-30556.json 37.0.0