Vulnerability in Gnu Libtasn1

CVE-2021-46848

GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.

EPSS: 0.021 (79.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-46848?
CVE-2021-46848 is a critical-severity vulnerability in Gnu Libtasn1, classified under Off-by-one Error. CVSS score: 9.1/10. Published 2022-10-24.
How severe is CVE-2021-46848?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2021-46848 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.