CVE-2020-1897 is a critical use-after-free vulnerability affecting Facebook Proxygen versions prior to v2020.05.18.00. It arises from an error in lifetime management within the request adaptor, triggered when a malicious client manipulates request error handling in a specific sequence. This flaw carries a CVSS score of 9.8 (Critical), indicating it can be exploited remotely with low complexity, leading to high impacts on confidentiality, integrity, and availability without user interaction. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2020.05.18.00CPE matchmatch criteria | cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:* | ||
< v2020.05.18.00CPE match | cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.