CVE-2021-20718
HIGH
7.5
CVSS Score
Published: May 20, 2021 at 01:15 AM UTC
Updated: June 17, 2026 at 03:34 AM UTC
4 products affected across 4 vendorsFedoraEssbaseMod Auth Openidc
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Severity
HIGH7.5
Exploit prediction
EPSS 3%
Description
mod_auth_openidc 2.4.0 to 2.4.7 allows a remote attacker to cause a denial-of-service (DoS) condition via unspecified vectors.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
2.4.0 ≤ v ≤ 2.4.7
v < 21.3
Affected range stops below 21.3, so it looks safe — our inference, not a vendor statement
2.4.0 ≤ v ≤ 2.4.7
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (6)
x_refsource_MISCProductThird Party Advisory
Source: [email protected]
https://github.com/zmartzone/mod_auth_openidcx_refsource_MISCThird Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN49704918/index.htmlVendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5HJK366TLFEOIYWTHQSZO24MSDPBXHJU/Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FV4KYMQWPS3I2QPW2C253MLIAFGBZPLK/x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpujan2022.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400
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