9.8

CVE-2022-31045: istio Out-of-bounds Read

CVSS: 9.8v3.1CriticalModified
AliasesCGA-9h6x-xmcv-q29jCGA-f5g7-2qgf-hw54CGA-gmrx-w6wh-x8jw
Published 09-06-2022Last modified 23-04-2025
Open JSON

Vulnerability summary

CVE-2022-31045 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in istio. EPSS estimates a 1.18% chance of exploitation in the next 30 days, higher than 67.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 15
RHSA-2022:5004CGA-2884-6W65-V8Q9CGA-59HP-F8J9-2Q3XCGA-7J28-637G-6Q9RCGA-7WFH-654X-6WXHCGA-7X8R-W99X-V4RJ

Timeline

  1. 09-06-2022
    PublishedVulnerability first disclosed.
  2. 23-04-2025
    Last modifiedVulnerability information updated.

Description

Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

1.18%

Chance of exploitation in the next 30 days

Percentile

67%

Versus all other CVEs

30-day change

0.00 pp

From 1.18% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard10 products
  • cert-manager-istio-csrAll versions (No fix recorded)
  • cert-manager-istio-csr-compatAll versions (No fix recorded)
  • cert-manager-istio-csr-compat-fipsAll versions (No fix recorded)
  • cert-manager-istio-csr-fipsAll versions (No fix recorded)
  • istio-pilot-agent-1.22All versions (No fix recorded)
Wolfi2 products
  • cert-manager-istio-csrAll versions (No fix recorded)
  • cert-manager-istio-csr-compatAll versions (No fix recorded)
Istio1 product
  • istioEOL< 1.12.18 | ≥ 1.14.0, < 1.14.1 | < 1.12.8 | ≥ 1.13.0, < 1.13.5 | 1.14.0
Istio.io1 product
  • istio< 1.12.18 | ≥ 1.13.0, < 1.13.5 | ≥ 1.14.0, < 1.14.1

4 vendors · 14 products

References

5 links