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CVE-2019-15225

26
FAUCET Score

CVE-2019-15225 describes a denial-of-service vulnerability in Envoy versions through 1.11.1, where a remote attacker can exploit the libstdc++ regular expression implementation by sending a very long URI. This high-severity vulnerability (CVSS 7.5) allows unauthenticated attackers to cause memory exhaustion, leading to a service disruption. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.11.1CPE matchmatch criteria
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.42%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0342 is in the 78th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Openshift Service Mesh 1.1Fixed in: kiali-0:v1.12.7.redhat1-1.el7
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Service Mesh 1.1Fixed in: ior-0:1.1.0-3.el8
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Service Mesh 1.1Fixed in: servicemesh-0:1.1.0-5.el8
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Service Mesh 1.1Fixed in: servicemesh-cni-0:1.1.0-3.el8
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Service Mesh 1.1Fixed in: servicemesh-grafana-0:6.4.3-2.el8
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Service Mesh 1.1Fixed in: servicemesh-operator-0:1.1.0-9.el8
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Service Mesh 1.1Fixed in: servicemesh-prometheus-0:2.14.0-3.el8
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Service Mesh 1.1Fixed in: servicemesh-proxy-0:1.1.0-4.el8
View patch

Vendor Advisories (1)

redhatCVE-2019-15225Important

envoy: crafted request with long URI allows remote attacker to cause denial of service

Aug 19, 2019

References

github.com / envoyproxy/envoy/issues/7728
ExploitThird Party Advisory