CVE-2022-34970

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-08-04 · updated 2026-06-17
Weakness: CWE-193

Description

Crow before 1.0+4 has a heap-based buffer overflow via the function qs_parse in query_string.h. On successful exploitation this vulnerability allows attackers to remotely execute arbitrary code in the context of the vulnerable service.

Affected products

Crow: before 1.0\+4 — fixed in 1.0\+4

How to fix

Upgrade to a fixed version: Crow 1.0\+4. Check the vendor advisory for mitigations.

References

https://cwe.mitre.org/data/definitions/193.html
https://github.com/0xhebi/CVE-2022-34970/blob/master/report.md
https://github.com/CrowCpp/Crow/pull/486
https://github.com/CrowCpp/Crow/releases/tag/v1.0%2B4
https://cwe.mitre.org/data/definitions/193.html
https://github.com/0xhebi/CVE-2022-34970/blob/master/report.md
https://github.com/CrowCpp/Crow/pull/486
https://github.com/CrowCpp/Crow/releases/tag/v1.0%2B4

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