Vulnerability in Oracle Communications_cloud_native_core_automated_test_suite

CVE-2021-29921

In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses.

EPSS: 0.069 (93.2th 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

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-29921?
CVE-2021-29921 is a critical-severity vulnerability in Oracle Communications_cloud_native_core_automated_test_suite. CVSS score: 9.8/10. Published 2021-05-06.
How severe is CVE-2021-29921?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-29921 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.