CVE-2020-10574Network attack vector

Remote service crash via logger-name validation typo

Published Mar 14, 2020 · Updated Aug 4, 2024

NULL-pointer dereference in Janus through 0.9.1 allows remote attackers to crash the service through a query_logger Admin API request. The query_logger schema mistakenly requires a handler field, then janus.c retrieves the absent logger field and passes its null string value into the logger lookup. The request needs network access to the Admin API but no authenticated privileges; a successful request terminates the Janus service without a reported data-access or code-execution consequence.

CVSS severity9.8
Critical
EPSS probability1.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL-pointer dereference in Janus through 0.9.1 allows remote attackers to crash the service through a query_logger Admin API request. The query_logger schema mistakenly requires a handler field, then janus.c retrieves the absent logger field and passes its null string value into the logger lookup. The request needs network access to the Admin API but no authenticated privileges; a successful request terminates the Janus service without a reported data-access or code-execution consequence.

The record

CVE
CVE-2020-10574
Published
Mar 14, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-706, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 14, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-706Use of Incorrectly-Resolved Name or Reference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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