CVE-2022-30556

mediumpriority · track · 32EPSS 0.053 · 93 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
5.27% (93rd) EPSS
CVSS 5 · medium
Is it mine?
55 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · CISA US
v3.16.8mediumAV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-200USCWE-200US
04

affected products (55)

Products and version ranges known to be affected.

showing 20 of 55
05

advisories (4)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2022-0192Apache HTTP Server: Mehrere SchwachstellenDeutsch2022-06-07csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um falsche Informationen darzustellen, vertrauliche Informationen offenzulegen, einen Denial of Service Zustand herzustellen und Sicherheitsmaßnahmen zu umgehen.

  • WID-SEC-W-2024-1591Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-07-10csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um einen Denial of Service zu verursachen, Informationen offenzulegen, Privilegien zu erweitern und Sicherheitsmechanismen inklusive zu umgehen.

  • ICSA-25-133-01Hitachi Energy Service Suite2025-02-25icsa · cisa_csaf_otUS

    Hitachi Energy is aware of the multiple vulnerabilities related to open-source Apache Tomcat components that affect the Service Suite product versions listed in this document. An attacker successfully exploiting these vulnerabilities can cause confidentiality, integrity and availability impacts. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation.

  • BIT-apache-2022-30556Information Disclosure in mod_lua with websockets2024-03-06vendor · osvUS

    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.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otosvNVDCVE.orgMITRE
published 2022-06-09modified 2026-06-17
08

references (35)

External citations — patches, advisories, analysis.

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