What is CVE-2023-40711?

CVE-2023-40711 is a high-severity vulnerability in Veilid, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-08-20.

How severe is CVE-2023-40711?

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

Is CVE-2023-40711 known to be exploited?

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

Buffer overflow in Veilid

CVE-2023-40711

Veilid before 0.1.9 does not check the size of uncompressed data during decompression upon an envelope receipt, which allows remote attackers to cause a denial of service (out-of-memory abort) via crafted packet data, as exploited in the wild in August 2023.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (51.8th 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

Veilid
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Release Notes)

Frequently asked questions

What is CVE-2023-40711?: CVE-2023-40711 is a high-severity vulnerability in Veilid, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-08-20.
How severe is CVE-2023-40711?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-40711 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.