What is CVE-2023-52557?

CVE-2023-52557 is a high-severity vulnerability in Openbsd, classified under Incorrect Calculation of Buffer Size. CVSS score: 7.5/10. Published 2024-03-01.

How severe is CVE-2023-52557?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-52557 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Openbsd

CVE-2023-52557

In OpenBSD 7.3 before errata 016, npppd(8) could crash by a l2tp message which has an AVP (Attribute-Value Pair) with wrong length.

EPSS: 0.006 (43.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Openbsd — versions 7.3

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

9119a7d8-5eab-497f-8521-727c672e3725 (Patch)
9119a7d8-5eab-497f-8521-727c672e3725 (Patch)

Frequently asked questions

What is CVE-2023-52557?: CVE-2023-52557 is a high-severity vulnerability in Openbsd, classified under Incorrect Calculation of Buffer Size. CVSS score: 7.5/10. Published 2024-03-01.
How severe is CVE-2023-52557?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-52557 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.