CVE-2022-34970 json
Crow before 1.0+4 has a heap-based buffer overflow via the function qs_parse in query_string.h.
published 2022-08-04 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37872
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.0%
- EPSS 4.0% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- crowcpp crow 1.0\+4
- github.com/CrowCpp/Crow#486 pull request
- github.com/CrowCpp/Crow/releases/tag/v1.0%2B4 release
Exploit prediction
3.96% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/0xhebi/CVE-2022-34970/blob/master/report.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-193 Off-by-one Error
References
-
github.com
/CrowCpp/Crow/pull/486
patch, third-party-advisory
-
github.com
/0xhebi/CVE-2022-34970/blob/master/report.md
exploit, third-party-advisory
-
github.com
/CrowCpp/Crow/releases/tag/v1.0%2B4
third-party-advisory
-
cwe.mitre.org
/data/definitions/193.html
third-party-advisory
Sources
- CVE List CVE-2022-34970
- NVD CVE-2022-34970
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