What is CVE-2020-1897?

CVE-2020-1897 is a critical-severity vulnerability in Facebook Proxygen, classified under Use After Free. CVSS score: 9.8/10. Published 2020-05-18.

How severe is CVE-2020-1897?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Use After Free in Facebook Proxygen

CVE-2020-1897

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.

Vulnerability class: Use-After-Free

EPSS: 0.011 (62.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Facebook Proxygen — versions unspecified, v2020.05.18.00

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve-assign@fb.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2020-1897?: CVE-2020-1897 is a critical-severity vulnerability in Facebook Proxygen, classified under Use After Free. CVSS score: 9.8/10. Published 2020-05-18.
How severe is CVE-2020-1897?: Critical severity. CVSS v3 base score is 9.8 out of 10.