CVE-2020-1897 json
A use-after-free is possible due to an error in lifetime management in the request adaptor when a malicious client invokes request error ha…
published 2020-05-18 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-12723
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
A use-after-free is possible due to an error in lifetime management in the request adaptor when a malicious client invokes request error handling in a specific sequence. This issue affects versions of proxygen prior to v2020.05.18.00.
Patch / fix
- Facebook proxygen v2020.05.18.00
Exploit prediction
1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Facebook proxygen
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
facebook.com
/security/advisories/cve-2020-1897
vendor-advisory
Sources
- CVE List CVE-2020-1897
- NVD CVE-2020-1897
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