Vulnerability in Envoyproxy Envoy
CVE-2024-53271
Envoy is a cloud-native high-performance edge/middle/service proxy. In affected versions envoy does not properly handle http 1.1 non-101 1xx responses. This can lead to downstream failures in networked devices. This issue has been addressed in versions 1.31.5 and 1.32.3. Users are advised to upgrade. There are no known workarounds for this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.000
Affected products
- Envoyproxy Envoy — versions >= 1.31.0, < 1.31.5, >= 1.32.0, < 1.32.3
Weakness classification (CWE)
References
- github.com/envoyproxy/envoy/security/advisories/GHSA-rmm5-h2wv-mg4f (Exploit, Third Party Advisory)
- github.com/envoyproxy/envoy/commit/da56f6da63079baecef9183436ee5f4141a59af8 (Patch)
Frequently asked questions
- What is CVE-2024-53271?
- CVE-2024-53271 is a high-severity vulnerability in Envoyproxy Envoy, classified under Always-Incorrect Control Flow Implementation. CVSS score: 7.1/10. Published 2024-12-18.
- How severe is CVE-2024-53271?
- High severity. CVSS v3 base score is 7.1 out of 10.