CVE-2023-40711

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-20 · updated 2026-06-17
Weakness: CWE-787

Description

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.

Affected products

Veilid: before 0.1.9 — fixed in 0.1.9

How to fix

Upgrade to a fixed version: Veilid 0.1.9. Check the vendor advisory for mitigations.

References

https://gitlab.com/veilid/veilid/-/blob/main/CHANGELOG.md
https://gitlab.com/veilid/veilid/-/blob/main/CHANGELOG.md

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