Buffer overflow in Perl

CVE-2022-48522

In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.

Vulnerability class: Buffer Overflow

EPSS: 0.020 (79.2th 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

  • Perl — versions 5.34.0
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-48522?
CVE-2022-48522 is a critical-severity vulnerability in Perl, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-08-22.
How severe is CVE-2022-48522?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-48522 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.