Is CVE-2020-1897 actively exploited?

No active exploitation of CVE-2020-1897 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-1897 be exploited remotely?

Yes. CVE-2020-1897 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-1897?

CVE-2020-1897 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-1897

CRITICAL

CVE-2020-1897

CWE-416Published: May 18, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2020-1897 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.